Finding the Fourth Proportional to 3,870.72, 5,342.04 and 2,298.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.72 : 5,342.04 = 2,298.81 : x
2. Step 2: Convert to fraction form
   3,870.72/5,342.04 = 2,298.81/x
3. Step 3: Cross multiply
   3,870.72x = 5,342.04 × 2,298.81
4. Step 4: Simplify right side
   3,870.72x = 12,280,334.97
5. Step 5: Solve for x
   x = 12,280,334.97/3,870.72
6. Step 6: Final answer
   x = 3,172.63