Finding the Fourth Proportional to 2,521.86, 3,478.44 and 1,525.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.86 : 3,478.44 = 1,525.42 : x
2. Step 2: Convert to fraction form
   2,521.86/3,478.44 = 1,525.42/x
3. Step 3: Cross multiply
   2,521.86x = 3,478.44 × 1,525.42
4. Step 4: Simplify right side
   2,521.86x = 5,306,081.94
5. Step 5: Solve for x
   x = 5,306,081.94/2,521.86
6. Step 6: Final answer
   x = 2,104.04