Finding the Fourth Proportional to 1,056.02, 1,457.33 and 613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056.02 : 1,457.33 = 613.76 : x
2. Step 2: Convert to fraction form
   1,056.02/1,457.33 = 613.76/x
3. Step 3: Cross multiply
   1,056.02x = 1,457.33 × 613.76
4. Step 4: Simplify right side
   1,056.02x = 894,447.79
5. Step 5: Solve for x
   x = 894,447.79/1,056.02
6. Step 6: Final answer
   x = 847.00