Finding the Fourth Proportional to 1,437.42, 2,157.34 and 744.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.42 : 2,157.34 = 744.52 : x
2. Step 2: Convert to fraction form
   1,437.42/2,157.34 = 744.52/x
3. Step 3: Cross multiply
   1,437.42x = 2,157.34 × 744.52
4. Step 4: Simplify right side
   1,437.42x = 1,606,182.78
5. Step 5: Solve for x
   x = 1,606,182.78/1,437.42
6. Step 6: Final answer
   x = 1,117.41