Finding the Fourth Proportional to 1,043.89, 1,566.27 and 458.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.89 : 1,566.27 = 458.59 : x
2. Step 2: Convert to fraction form
   1,043.89/1,566.27 = 458.59/x
3. Step 3: Cross multiply
   1,043.89x = 1,566.27 × 458.59
4. Step 4: Simplify right side
   1,043.89x = 718,275.76
5. Step 5: Solve for x
   x = 718,275.76/1,043.89
6. Step 6: Final answer
   x = 688.08