Finding the Fourth Proportional to 2,701.50, 3,726.78 and 1,915.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,701.50 : 3,726.78 = 1,915.98 : x
2. Step 2: Convert to fraction form
   2,701.50/3,726.78 = 1,915.98/x
3. Step 3: Cross multiply
   2,701.50x = 3,726.78 × 1,915.98
4. Step 4: Simplify right side
   2,701.50x = 7,140,435.94
5. Step 5: Solve for x
   x = 7,140,435.94/2,701.50
6. Step 6: Final answer
   x = 2,643.14