Finding the Fourth Proportional to 1,103.34, 1,522.44 and 637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.34 : 1,522.44 = 637.50 : x
2. Step 2: Convert to fraction form
   1,103.34/1,522.44 = 637.50/x
3. Step 3: Cross multiply
   1,103.34x = 1,522.44 × 637.50
4. Step 4: Simplify right side
   1,103.34x = 970,555.50
5. Step 5: Solve for x
   x = 970,555.50/1,103.34
6. Step 6: Final answer
   x = 879.65