Finding the Fourth Proportional to 1,056.07, 1,457.69 and 614.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056.07 : 1,457.69 = 614.17 : x
2. Step 2: Convert to fraction form
   1,056.07/1,457.69 = 614.17/x
3. Step 3: Cross multiply
   1,056.07x = 1,457.69 × 614.17
4. Step 4: Simplify right side
   1,056.07x = 895,269.47
5. Step 5: Solve for x
   x = 895,269.47/1,056.07
6. Step 6: Final answer
   x = 847.74