Finding the Fourth Proportional to 2,809.88, 3,875.28 and 2,054.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,809.88 : 3,875.28 = 2,054.60 : x
2. Step 2: Convert to fraction form
   2,809.88/3,875.28 = 2,054.60/x
3. Step 3: Cross multiply
   2,809.88x = 3,875.28 × 2,054.60
4. Step 4: Simplify right side
   2,809.88x = 7,962,150.29
5. Step 5: Solve for x
   x = 7,962,150.29/2,809.88
6. Step 6: Final answer
   x = 2,833.63