Finding the Fourth Proportional to 1,056.09, 1,457.43 and 614.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056.09 : 1,457.43 = 614.10 : x
2. Step 2: Convert to fraction form
   1,056.09/1,457.43 = 614.10/x
3. Step 3: Cross multiply
   1,056.09x = 1,457.43 × 614.10
4. Step 4: Simplify right side
   1,056.09x = 895,007.76
5. Step 5: Solve for x
   x = 895,007.76/1,056.09
6. Step 6: Final answer
   x = 847.47