Finding the Fourth Proportional to 2,522.24, 3,779.52 and 1,288.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.24 : 3,779.52 = 1,288.32 : x
2. Step 2: Convert to fraction form
   2,522.24/3,779.52 = 1,288.32/x
3. Step 3: Cross multiply
   2,522.24x = 3,779.52 × 1,288.32
4. Step 4: Simplify right side
   2,522.24x = 4,869,231.21
5. Step 5: Solve for x
   x = 4,869,231.21/2,522.24
6. Step 6: Final answer
   x = 1,930.52