Finding the Fourth Proportional to 1,159.76, 1,737.69 and 573.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,159.76 : 1,737.69 = 573.98 : x
2. Step 2: Convert to fraction form
   1,159.76/1,737.69 = 573.98/x
3. Step 3: Cross multiply
   1,159.76x = 1,737.69 × 573.98
4. Step 4: Simplify right side
   1,159.76x = 997,399.31
5. Step 5: Solve for x
   x = 997,399.31/1,159.76
6. Step 6: Final answer
   x = 860.00