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Finding the Fourth Proportional to 885,861.20, 1,328,791.80 and 880,612.40

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Solution

The fourth proportional to 885,861.20, 1,328,791.80 and 880,612.40 is: 1,320,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,861.20 : 1,328,791.80 = 880,612.40 : x
  2. Step 2: Convert to fraction form
    885,861.20/1,328,791.80 = 880,612.40/x
  3. Step 3: Cross multiply
    885,861.20x = 1,328,791.80 × 880,612.40
  4. Step 4: Simplify right side
    885,861.20x = 1,170,150,536,098.32
  5. Step 5: Solve for x
    x = 1,170,150,536,098.32/885,861.20
  6. Step 6: Final answer
    x = 1,320,918.60

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