Finding the Fourth Proportional to 1,375.74, 2,065.15 and 914.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.74 : 2,065.15 = 914.42 : x
2. Step 2: Convert to fraction form
   1,375.74/2,065.15 = 914.42/x
3. Step 3: Cross multiply
   1,375.74x = 2,065.15 × 914.42
4. Step 4: Simplify right side
   1,375.74x = 1,888,414.46
5. Step 5: Solve for x
   x = 1,888,414.46/1,375.74
6. Step 6: Final answer
   x = 1,372.65