Finding the Fourth Proportional to 1,375.48, 1,899.72 and 932.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.48 : 1,899.72 = 932.61 : x
2. Step 2: Convert to fraction form
   1,375.48/1,899.72 = 932.61/x
3. Step 3: Cross multiply
   1,375.48x = 1,899.72 × 932.61
4. Step 4: Simplify right side
   1,375.48x = 1,771,704.99
5. Step 5: Solve for x
   x = 1,771,704.99/1,375.48
6. Step 6: Final answer
   x = 1,288.06