Finding the Fourth Proportional to 3,792.80, 5,233.47 and 2,113.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,792.80 : 5,233.47 = 2,113.67 : x
2. Step 2: Convert to fraction form
   3,792.80/5,233.47 = 2,113.67/x
3. Step 3: Cross multiply
   3,792.80x = 5,233.47 × 2,113.67
4. Step 4: Simplify right side
   3,792.80x = 11,061,828.53
5. Step 5: Solve for x
   x = 11,061,828.53/3,792.80
6. Step 6: Final answer
   x = 2,916.53