Finding the Fourth Proportional to 2,538.52, 3,503.72 and 1,490.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.52 : 3,503.72 = 1,490.80 : x
2. Step 2: Convert to fraction form
   2,538.52/3,503.72 = 1,490.80/x
3. Step 3: Cross multiply
   2,538.52x = 3,503.72 × 1,490.80
4. Step 4: Simplify right side
   2,538.52x = 5,223,345.78
5. Step 5: Solve for x
   x = 5,223,345.78/2,538.52
6. Step 6: Final answer
   x = 2,057.63