Finding the Fourth Proportional to 1,719.50, 2,373.50 and 1,159.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.50 : 2,373.50 = 1,159.61 : x
2. Step 2: Convert to fraction form
   1,719.50/2,373.50 = 1,159.61/x
3. Step 3: Cross multiply
   1,719.50x = 2,373.50 × 1,159.61
4. Step 4: Simplify right side
   1,719.50x = 2,752,334.34
5. Step 5: Solve for x
   x = 2,752,334.34/1,719.50
6. Step 6: Final answer
   x = 1,600.66