Finding the Fourth Proportional to 1,359.13, 1,876.93 and 1,161.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.13 : 1,876.93 = 1,161.49 : x
2. Step 2: Convert to fraction form
   1,359.13/1,876.93 = 1,161.49/x
3. Step 3: Cross multiply
   1,359.13x = 1,876.93 × 1,161.49
4. Step 4: Simplify right side
   1,359.13x = 2,180,035.43
5. Step 5: Solve for x
   x = 2,180,035.43/1,359.13
6. Step 6: Final answer
   x = 1,603.99