Finding the Fourth Proportional to 2,084.99, 2,877.22 and 1,140.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.99 : 2,877.22 = 1,140.78 : x
2. Step 2: Convert to fraction form
   2,084.99/2,877.22 = 1,140.78/x
3. Step 3: Cross multiply
   2,084.99x = 2,877.22 × 1,140.78
4. Step 4: Simplify right side
   2,084.99x = 3,282,287.25
5. Step 5: Solve for x
   x = 3,282,287.25/2,084.99
6. Step 6: Final answer
   x = 1,574.25