Finding the Fourth Proportional to 2,454.72, 3,679.68 and 993.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.72 : 3,679.68 = 993.52 : x
2. Step 2: Convert to fraction form
   2,454.72/3,679.68 = 993.52/x
3. Step 3: Cross multiply
   2,454.72x = 3,679.68 × 993.52
4. Step 4: Simplify right side
   2,454.72x = 3,655,835.67
5. Step 5: Solve for x
   x = 3,655,835.67/2,454.72
6. Step 6: Final answer
   x = 1,489.31