Finding the Fourth Proportional to 1,458.06, 2,002.34 and 1,248.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.06 : 2,002.34 = 1,248.23 : x
2. Step 2: Convert to fraction form
   1,458.06/2,002.34 = 1,248.23/x
3. Step 3: Cross multiply
   1,458.06x = 2,002.34 × 1,248.23
4. Step 4: Simplify right side
   1,458.06x = 2,499,380.86
5. Step 5: Solve for x
   x = 2,499,380.86/1,458.06
6. Step 6: Final answer
   x = 1,714.18