Finding the Fourth Proportional to 2,084.19, 2,876.17 and 1,139.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.19 : 2,876.17 = 1,139.98 : x
2. Step 2: Convert to fraction form
   2,084.19/2,876.17 = 1,139.98/x
3. Step 3: Cross multiply
   2,084.19x = 2,876.17 × 1,139.98
4. Step 4: Simplify right side
   2,084.19x = 3,278,756.20
5. Step 5: Solve for x
   x = 3,278,756.20/2,084.19
6. Step 6: Final answer
   x = 1,573.15