Finding the Fourth Proportional to 1,056.42, 1,457.79 and 614.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056.42 : 1,457.79 = 614.25 : x
2. Step 2: Convert to fraction form
   1,056.42/1,457.79 = 614.25/x
3. Step 3: Cross multiply
   1,056.42x = 1,457.79 × 614.25
4. Step 4: Simplify right side
   1,056.42x = 895,447.51
5. Step 5: Solve for x
   x = 895,447.51/1,056.42
6. Step 6: Final answer
   x = 847.62