Finding the Fourth Proportional to 2,521.16, 3,478.64 and 1,526.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.16 : 3,478.64 = 1,526.24 : x
2. Step 2: Convert to fraction form
   2,521.16/3,478.64 = 1,526.24/x
3. Step 3: Cross multiply
   2,521.16x = 3,478.64 × 1,526.24
4. Step 4: Simplify right side
   2,521.16x = 5,309,239.51
5. Step 5: Solve for x
   x = 5,309,239.51/2,521.16
6. Step 6: Final answer
   x = 2,105.87