Finding the Fourth Proportional to 2,488.30, 3,731.60 and 1,100.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.30 : 3,731.60 = 1,100.70 : x
2. Step 2: Convert to fraction form
   2,488.30/3,731.60 = 1,100.70/x
3. Step 3: Cross multiply
   2,488.30x = 3,731.60 × 1,100.70
4. Step 4: Simplify right side
   2,488.30x = 4,107,372.12
5. Step 5: Solve for x
   x = 4,107,372.12/2,488.30
6. Step 6: Final answer
   x = 1,650.67