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Finding the Fourth Proportional to 1,260,364.60, 1,890,546.90 and 787,583.80

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Solution

The fourth proportional to 1,260,364.60, 1,890,546.90 and 787,583.80 is: 1,181,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,364.60 : 1,890,546.90 = 787,583.80 : x
  2. Step 2: Convert to fraction form
    1,260,364.60/1,890,546.90 = 787,583.80/x
  3. Step 3: Cross multiply
    1,260,364.60x = 1,890,546.90 × 787,583.80
  4. Step 4: Simplify right side
    1,260,364.60x = 1,488,964,111,580.22
  5. Step 5: Solve for x
    x = 1,488,964,111,580.22/1,260,364.60
  6. Step 6: Final answer
    x = 1,181,375.70

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