Finding the Fourth Proportional to 1,375.48, 1,898.68 and 932.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.48 : 1,898.68 = 932.50 : x
2. Step 2: Convert to fraction form
   1,375.48/1,898.68 = 932.50/x
3. Step 3: Cross multiply
   1,375.48x = 1,898.68 × 932.50
4. Step 4: Simplify right side
   1,375.48x = 1,770,519.10
5. Step 5: Solve for x
   x = 1,770,519.10/1,375.48
6. Step 6: Final answer
   x = 1,287.20