Finding the Fourth Proportional to 2,084.63, 2,876.78 and 1,153.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.63 : 2,876.78 = 1,153.13 : x
2. Step 2: Convert to fraction form
   2,084.63/2,876.78 = 1,153.13/x
3. Step 3: Cross multiply
   2,084.63x = 2,876.78 × 1,153.13
4. Step 4: Simplify right side
   2,084.63x = 3,317,289.82
5. Step 5: Solve for x
   x = 3,317,289.82/2,084.63
6. Step 6: Final answer
   x = 1,591.31