Finding the Fourth Proportional to 1,715.57, 2,367.48 and 929.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.57 : 2,367.48 = 929.61 : x
2. Step 2: Convert to fraction form
   1,715.57/2,367.48 = 929.61/x
3. Step 3: Cross multiply
   1,715.57x = 2,367.48 × 929.61
4. Step 4: Simplify right side
   1,715.57x = 2,200,833.08
5. Step 5: Solve for x
   x = 2,200,833.08/1,715.57
6. Step 6: Final answer
   x = 1,282.86