Finding the Fourth Proportional to 2,521.19, 3,478.43 and 1,526.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.19 : 3,478.43 = 1,526.15 : x
2. Step 2: Convert to fraction form
   2,521.19/3,478.43 = 1,526.15/x
3. Step 3: Cross multiply
   2,521.19x = 3,478.43 × 1,526.15
4. Step 4: Simplify right side
   2,521.19x = 5,308,592.37
5. Step 5: Solve for x
   x = 5,308,592.37/2,521.19
6. Step 6: Final answer
   x = 2,105.59