Finding the Fourth Proportional to 2,895.72, 3,997.78 and 1,902.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,895.72 : 3,997.78 = 1,902.72 : x
2. Step 2: Convert to fraction form
   2,895.72/3,997.78 = 1,902.72/x
3. Step 3: Cross multiply
   2,895.72x = 3,997.78 × 1,902.72
4. Step 4: Simplify right side
   2,895.72x = 7,606,655.96
5. Step 5: Solve for x
   x = 7,606,655.96/2,895.72
6. Step 6: Final answer
   x = 2,626.86