Finding the Fourth Proportional to 837.34, 1,248.72 and 744.10

Step by Step Solution

1. Step 1: Write the proportion equation
   837.34 : 1,248.72 = 744.10 : x
2. Step 2: Convert to fraction form
   837.34/1,248.72 = 744.10/x
3. Step 3: Cross multiply
   837.34x = 1,248.72 × 744.10
4. Step 4: Simplify right side
   837.34x = 929,172.55
5. Step 5: Solve for x
   x = 929,172.55/837.34
6. Step 6: Final answer
   x = 1,109.67