Finding the Fourth Proportional to 2,522.52, 3,481.16 and 1,388.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.52 : 3,481.16 = 1,388.23 : x
2. Step 2: Convert to fraction form
   2,522.52/3,481.16 = 1,388.23/x
3. Step 3: Cross multiply
   2,522.52x = 3,481.16 × 1,388.23
4. Step 4: Simplify right side
   2,522.52x = 4,832,650.75
5. Step 5: Solve for x
   x = 4,832,650.75/2,522.52
6. Step 6: Final answer
   x = 1,915.80