Finding the Fourth Proportional to 2,385.46, 3,577.54 and 998.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.46 : 3,577.54 = 998.51 : x
2. Step 2: Convert to fraction form
   2,385.46/3,577.54 = 998.51/x
3. Step 3: Cross multiply
   2,385.46x = 3,577.54 × 998.51
4. Step 4: Simplify right side
   2,385.46x = 3,572,213.89
5. Step 5: Solve for x
   x = 3,572,213.89/2,385.46
6. Step 6: Final answer
   x = 1,497.50