Finding the Fourth Proportional to 2,520.79, 3,478.71 and 1,525.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.79 : 3,478.71 = 1,525.82 : x
2. Step 2: Convert to fraction form
   2,520.79/3,478.71 = 1,525.82/x
3. Step 3: Cross multiply
   2,520.79x = 3,478.71 × 1,525.82
4. Step 4: Simplify right side
   2,520.79x = 5,307,877.66
5. Step 5: Solve for x
   x = 5,307,877.66/2,520.79
6. Step 6: Final answer
   x = 2,105.64