Finding the Fourth Proportional to 2,809.76, 3,876.89 and 1,925.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,809.76 : 3,876.89 = 1,925.24 : x
2. Step 2: Convert to fraction form
   2,809.76/3,876.89 = 1,925.24/x
3. Step 3: Cross multiply
   2,809.76x = 3,876.89 × 1,925.24
4. Step 4: Simplify right side
   2,809.76x = 7,463,914.69
5. Step 5: Solve for x
   x = 7,463,914.69/2,809.76
6. Step 6: Final answer
   x = 2,656.43