Finding the Fourth Proportional to 1,359.56, 1,874.48 and 1,159.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.56 : 1,874.48 = 1,159.99 : x
2. Step 2: Convert to fraction form
   1,359.56/1,874.48 = 1,159.99/x
3. Step 3: Cross multiply
   1,359.56x = 1,874.48 × 1,159.99
4. Step 4: Simplify right side
   1,359.56x = 2,174,367.57
5. Step 5: Solve for x
   x = 2,174,367.57/1,359.56
6. Step 6: Final answer
   x = 1,599.31