Finding the Fourth Proportional to 1,056.30, 1,457.82 and 614.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056.30 : 1,457.82 = 614.22 : x
2. Step 2: Convert to fraction form
   1,056.30/1,457.82 = 614.22/x
3. Step 3: Cross multiply
   1,056.30x = 1,457.82 × 614.22
4. Step 4: Simplify right side
   1,056.30x = 895,422.20
5. Step 5: Solve for x
   x = 895,422.20/1,056.30
6. Step 6: Final answer
   x = 847.70