Finding the Fourth Proportional to 1,945.72, 2,685.84 and 1,159.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.72 : 2,685.84 = 1,159.82 : x
2. Step 2: Convert to fraction form
   1,945.72/2,685.84 = 1,159.82/x
3. Step 3: Cross multiply
   1,945.72x = 2,685.84 × 1,159.82
4. Step 4: Simplify right side
   1,945.72x = 3,115,077.52
5. Step 5: Solve for x
   x = 3,115,077.52/1,945.72
6. Step 6: Final answer
   x = 1,600.99