Finding the Fourth Proportional to 1,932.72, 2,666.88 and 1,147.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.72 : 2,666.88 = 1,147.08 : x
2. Step 2: Convert to fraction form
   1,932.72/2,666.88 = 1,147.08/x
3. Step 3: Cross multiply
   1,932.72x = 2,666.88 × 1,147.08
4. Step 4: Simplify right side
   1,932.72x = 3,059,124.71
5. Step 5: Solve for x
   x = 3,059,124.71/1,932.72
6. Step 6: Final answer
   x = 1,582.81