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Finding the Fourth Proportional to 1,819.53, 2,729.16 and 1,087.47

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Solution

The fourth proportional to 1,819.53, 2,729.16 and 1,087.47 is: 1,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.53 : 2,729.16 = 1,087.47 : x
  2. Step 2: Convert to fraction form
    1,819.53/2,729.16 = 1,087.47/x
  3. Step 3: Cross multiply
    1,819.53x = 2,729.16 × 1,087.47
  4. Step 4: Simplify right side
    1,819.53x = 2,967,879.63
  5. Step 5: Solve for x
    x = 2,967,879.63/1,819.53
  6. Step 6: Final answer
    x = 1,631.12

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