Finding the Fourth Proportional to 1,346.60, 1,858.34 and 757.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.60 : 1,858.34 = 757.15 : x
2. Step 2: Convert to fraction form
   1,346.60/1,858.34 = 757.15/x
3. Step 3: Cross multiply
   1,346.60x = 1,858.34 × 757.15
4. Step 4: Simplify right side
   1,346.60x = 1,407,039.38
5. Step 5: Solve for x
   x = 1,407,039.38/1,346.60
6. Step 6: Final answer
   x = 1,044.88