Finding the Fourth Proportional to 3,870.96, 5,341.89 and 2,102.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.96 : 5,341.89 = 2,102.53 : x
2. Step 2: Convert to fraction form
   3,870.96/5,341.89 = 2,102.53/x
3. Step 3: Cross multiply
   3,870.96x = 5,341.89 × 2,102.53
4. Step 4: Simplify right side
   3,870.96x = 11,231,483.98
5. Step 5: Solve for x
   x = 11,231,483.98/3,870.96
6. Step 6: Final answer
   x = 2,901.47