Finding the Fourth Proportional to 1,768.29, 2,439.20 and 1,103.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,768.29 : 2,439.20 = 1,103.99 : x
2. Step 2: Convert to fraction form
   1,768.29/2,439.20 = 1,103.99/x
3. Step 3: Cross multiply
   1,768.29x = 2,439.20 × 1,103.99
4. Step 4: Simplify right side
   1,768.29x = 2,692,834.69
5. Step 5: Solve for x
   x = 2,692,834.69/1,768.29
6. Step 6: Final answer
   x = 1,522.85