Finding the Fourth Proportional to 1,749.27, 2,621.61 and 925.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,749.27 : 2,621.61 = 925.80 : x
2. Step 2: Convert to fraction form
   1,749.27/2,621.61 = 925.80/x
3. Step 3: Cross multiply
   1,749.27x = 2,621.61 × 925.80
4. Step 4: Simplify right side
   1,749.27x = 2,427,086.54
5. Step 5: Solve for x
   x = 2,427,086.54/1,749.27
6. Step 6: Final answer
   x = 1,387.49