Finding the Fourth Proportional to 1,859.32, 2,789.43 and 560.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.32 : 2,789.43 = 560.71 : x
2. Step 2: Convert to fraction form
   1,859.32/2,789.43 = 560.71/x
3. Step 3: Cross multiply
   1,859.32x = 2,789.43 × 560.71
4. Step 4: Simplify right side
   1,859.32x = 1,564,061.30
5. Step 5: Solve for x
   x = 1,564,061.30/1,859.32
6. Step 6: Final answer
   x = 841.20