Finding the Fourth Proportional to 2,540.79, 3,813 and 1,500.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.79 : 3,813 = 1,500.15 : x
2. Step 2: Convert to fraction form
   2,540.79/3,813 = 1,500.15/x
3. Step 3: Cross multiply
   2,540.79x = 3,813 × 1,500.15
4. Step 4: Simplify right side
   2,540.79x = 5,720,071.95
5. Step 5: Solve for x
   x = 5,720,071.95/2,540.79
6. Step 6: Final answer
   x = 2,251.30