Finding the Fourth Proportional to 2,088.37, 3,126.43 and 1,098.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.37 : 3,126.43 = 1,098.85 : x
2. Step 2: Convert to fraction form
   2,088.37/3,126.43 = 1,098.85/x
3. Step 3: Cross multiply
   2,088.37x = 3,126.43 × 1,098.85
4. Step 4: Simplify right side
   2,088.37x = 3,435,477.61
5. Step 5: Solve for x
   x = 3,435,477.61/2,088.37
6. Step 6: Final answer
   x = 1,645.05