Finding the Fourth Proportional to 1,522.50, 2,283.72 and 742.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.50 : 2,283.72 = 742.38 : x
2. Step 2: Convert to fraction form
   1,522.50/2,283.72 = 742.38/x
3. Step 3: Cross multiply
   1,522.50x = 2,283.72 × 742.38
4. Step 4: Simplify right side
   1,522.50x = 1,695,388.05
5. Step 5: Solve for x
   x = 1,695,388.05/1,522.50
6. Step 6: Final answer
   x = 1,113.56