Finding the Fourth Proportional to 1,755.94, 2,422.89 and 1,009.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,755.94 : 2,422.89 = 1,009.78 : x
2. Step 2: Convert to fraction form
   1,755.94/2,422.89 = 1,009.78/x
3. Step 3: Cross multiply
   1,755.94x = 2,422.89 × 1,009.78
4. Step 4: Simplify right side
   1,755.94x = 2,446,585.86
5. Step 5: Solve for x
   x = 2,446,585.86/1,755.94
6. Step 6: Final answer
   x = 1,393.32