Finding the Fourth Proportional to 2,379.78, 3,283.53 and 1,384.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.78 : 3,283.53 = 1,384.46 : x
2. Step 2: Convert to fraction form
   2,379.78/3,283.53 = 1,384.46/x
3. Step 3: Cross multiply
   2,379.78x = 3,283.53 × 1,384.46
4. Step 4: Simplify right side
   2,379.78x = 4,545,899.53
5. Step 5: Solve for x
   x = 4,545,899.53/2,379.78
6. Step 6: Final answer
   x = 1,910.22