Finding the Fourth Proportional to 2,515.95, 3,472.35 and 1,521.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515.95 : 3,472.35 = 1,521.27 : x
2. Step 2: Convert to fraction form
   2,515.95/3,472.35 = 1,521.27/x
3. Step 3: Cross multiply
   2,515.95x = 3,472.35 × 1,521.27
4. Step 4: Simplify right side
   2,515.95x = 5,282,381.88
5. Step 5: Solve for x
   x = 5,282,381.88/2,515.95
6. Step 6: Final answer
   x = 2,099.56