Finding the Fourth Proportional to 1,755.79, 2,422.72 and 1,009.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,755.79 : 2,422.72 = 1,009.61 : x
2. Step 2: Convert to fraction form
   1,755.79/2,422.72 = 1,009.61/x
3. Step 3: Cross multiply
   1,755.79x = 2,422.72 × 1,009.61
4. Step 4: Simplify right side
   1,755.79x = 2,446,002.34
5. Step 5: Solve for x
   x = 2,446,002.34/1,755.79
6. Step 6: Final answer
   x = 1,393.11