Finding the Fourth Proportional to 1,346.62, 1,858.30 and 757.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.62 : 1,858.30 = 757.15 : x
2. Step 2: Convert to fraction form
   1,346.62/1,858.30 = 757.15/x
3. Step 3: Cross multiply
   1,346.62x = 1,858.30 × 757.15
4. Step 4: Simplify right side
   1,346.62x = 1,407,011.85
5. Step 5: Solve for x
   x = 1,407,011.85/1,346.62
6. Step 6: Final answer
   x = 1,044.85