Finding the Fourth Proportional to 1,039.58, 1,434.51 and 614.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.58 : 1,434.51 = 614.19 : x
2. Step 2: Convert to fraction form
   1,039.58/1,434.51 = 614.19/x
3. Step 3: Cross multiply
   1,039.58x = 1,434.51 × 614.19
4. Step 4: Simplify right side
   1,039.58x = 881,061.70
5. Step 5: Solve for x
   x = 881,061.70/1,039.58
6. Step 6: Final answer
   x = 847.52