Finding the Fourth Proportional to 1,374.16, 2,059.31 and 758.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.16 : 2,059.31 = 758.15 : x
2. Step 2: Convert to fraction form
   1,374.16/2,059.31 = 758.15/x
3. Step 3: Cross multiply
   1,374.16x = 2,059.31 × 758.15
4. Step 4: Simplify right side
   1,374.16x = 1,561,262.09
5. Step 5: Solve for x
   x = 1,561,262.09/1,374.16
6. Step 6: Final answer
   x = 1,136.16