Finding the Fourth Proportional to 2,488.78, 3,730.16 and 1,100.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.78 : 3,730.16 = 1,100.54 : x
2. Step 2: Convert to fraction form
   2,488.78/3,730.16 = 1,100.54/x
3. Step 3: Cross multiply
   2,488.78x = 3,730.16 × 1,100.54
4. Step 4: Simplify right side
   2,488.78x = 4,105,166.13
5. Step 5: Solve for x
   x = 4,105,166.13/2,488.78
6. Step 6: Final answer
   x = 1,649.47