Finding the Fourth Proportional to 1,791.56, 2,470.72 and 1,161.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,791.56 : 2,470.72 = 1,161.43 : x
2. Step 2: Convert to fraction form
   1,791.56/2,470.72 = 1,161.43/x
3. Step 3: Cross multiply
   1,791.56x = 2,470.72 × 1,161.43
4. Step 4: Simplify right side
   1,791.56x = 2,869,550.17
5. Step 5: Solve for x
   x = 2,869,550.17/1,791.56
6. Step 6: Final answer
   x = 1,601.71