Finding the Fourth Proportional to 2,396.72, 3,307.42 and 1,348.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,396.72 : 3,307.42 = 1,348.78 : x
2. Step 2: Convert to fraction form
   2,396.72/3,307.42 = 1,348.78/x
3. Step 3: Cross multiply
   2,396.72x = 3,307.42 × 1,348.78
4. Step 4: Simplify right side
   2,396.72x = 4,460,981.95
5. Step 5: Solve for x
   x = 4,460,981.95/2,396.72
6. Step 6: Final answer
   x = 1,861.29