Finding the Fourth Proportional to 1,346.72, 1,858.34 and 749.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.72 : 1,858.34 = 749.20 : x
2. Step 2: Convert to fraction form
   1,346.72/1,858.34 = 749.20/x
3. Step 3: Cross multiply
   1,346.72x = 1,858.34 × 749.20
4. Step 4: Simplify right side
   1,346.72x = 1,392,268.33
5. Step 5: Solve for x
   x = 1,392,268.33/1,346.72
6. Step 6: Final answer
   x = 1,033.82