Finding the Fourth Proportional to 1,749.78, 2,403.89 and 1,565.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,749.78 : 2,403.89 = 1,565.71 : x
2. Step 2: Convert to fraction form
   1,749.78/2,403.89 = 1,565.71/x
3. Step 3: Cross multiply
   1,749.78x = 2,403.89 × 1,565.71
4. Step 4: Simplify right side
   1,749.78x = 3,763,794.61
5. Step 5: Solve for x
   x = 3,763,794.61/1,749.78
6. Step 6: Final answer
   x = 2,151.01