Finding the Fourth Proportional to 2,489.52, 3,731.72 and 1,026.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489.52 : 3,731.72 = 1,026.64 : x
2. Step 2: Convert to fraction form
   2,489.52/3,731.72 = 1,026.64/x
3. Step 3: Cross multiply
   2,489.52x = 3,731.72 × 1,026.64
4. Step 4: Simplify right side
   2,489.52x = 3,831,133.02
5. Step 5: Solve for x
   x = 3,831,133.02/2,489.52
6. Step 6: Final answer
   x = 1,538.90