Finding the Fourth Proportional to 2,790.02, 3,850.15 and 1,531.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.02 : 3,850.15 = 1,531.03 : x
2. Step 2: Convert to fraction form
   2,790.02/3,850.15 = 1,531.03/x
3. Step 3: Cross multiply
   2,790.02x = 3,850.15 × 1,531.03
4. Step 4: Simplify right side
   2,790.02x = 5,894,695.15
5. Step 5: Solve for x
   x = 5,894,695.15/2,790.02
6. Step 6: Final answer
   x = 2,112.78