Finding the Fourth Proportional to 2,084.57, 2,876.69 and 1,338.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.57 : 2,876.69 = 1,338.81 : x
2. Step 2: Convert to fraction form
   2,084.57/2,876.69 = 1,338.81/x
3. Step 3: Cross multiply
   2,084.57x = 2,876.69 × 1,338.81
4. Step 4: Simplify right side
   2,084.57x = 3,851,346.31
5. Step 5: Solve for x
   x = 3,851,346.31/2,084.57
6. Step 6: Final answer
   x = 1,847.55