Finding the Fourth Proportional to 1,490.83, 2,055.90 and 1,113.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.83 : 2,055.90 = 1,113.55 : x
2. Step 2: Convert to fraction form
   1,490.83/2,055.90 = 1,113.55/x
3. Step 3: Cross multiply
   1,490.83x = 2,055.90 × 1,113.55
4. Step 4: Simplify right side
   1,490.83x = 2,289,337.17
5. Step 5: Solve for x
   x = 2,289,337.17/1,490.83
6. Step 6: Final answer
   x = 1,535.62