Finding the Fourth Proportional to 2,088.84, 3,132.98 and 993.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.84 : 3,132.98 = 993.90 : x
2. Step 2: Convert to fraction form
   2,088.84/3,132.98 = 993.90/x
3. Step 3: Cross multiply
   2,088.84x = 3,132.98 × 993.90
4. Step 4: Simplify right side
   2,088.84x = 3,113,868.82
5. Step 5: Solve for x
   x = 3,113,868.82/2,088.84
6. Step 6: Final answer
   x = 1,490.72