Finding the Fourth Proportional to 1,056.89, 1,458.67 and 614.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056.89 : 1,458.67 = 614.83 : x
2. Step 2: Convert to fraction form
   1,056.89/1,458.67 = 614.83/x
3. Step 3: Cross multiply
   1,056.89x = 1,458.67 × 614.83
4. Step 4: Simplify right side
   1,056.89x = 896,834.08
5. Step 5: Solve for x
   x = 896,834.08/1,056.89
6. Step 6: Final answer
   x = 848.56