Finding the Fourth Proportional to 2,128.53, 3,193.31 and 1,088.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.53 : 3,193.31 = 1,088.49 : x
2. Step 2: Convert to fraction form
   2,128.53/3,193.31 = 1,088.49/x
3. Step 3: Cross multiply
   2,128.53x = 3,193.31 × 1,088.49
4. Step 4: Simplify right side
   2,128.53x = 3,475,886.00
5. Step 5: Solve for x
   x = 3,475,886.00/2,128.53
6. Step 6: Final answer
   x = 1,633.00