Finding the Fourth Proportional to 3,531.94, 4,874.04 and 2,538.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,531.94 : 4,874.04 = 2,538.20 : x
2. Step 2: Convert to fraction form
   3,531.94/4,874.04 = 2,538.20/x
3. Step 3: Cross multiply
   3,531.94x = 4,874.04 × 2,538.20
4. Step 4: Simplify right side
   3,531.94x = 12,371,300.51
5. Step 5: Solve for x
   x = 12,371,300.51/3,531.94
6. Step 6: Final answer
   x = 3,502.70