Finding the Fourth Proportional to 2,380.71, 3,285.75 and 1,332.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.71 : 3,285.75 = 1,332.78 : x
2. Step 2: Convert to fraction form
   2,380.71/3,285.75 = 1,332.78/x
3. Step 3: Cross multiply
   2,380.71x = 3,285.75 × 1,332.78
4. Step 4: Simplify right side
   2,380.71x = 4,379,181.89
5. Step 5: Solve for x
   x = 4,379,181.89/2,380.71
6. Step 6: Final answer
   x = 1,839.44