Finding the Fourth Proportional to 2,379.42, 3,283.54 and 1,385.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.42 : 3,283.54 = 1,385.04 : x
2. Step 2: Convert to fraction form
   2,379.42/3,283.54 = 1,385.04/x
3. Step 3: Cross multiply
   2,379.42x = 3,283.54 × 1,385.04
4. Step 4: Simplify right side
   2,379.42x = 4,547,830.78
5. Step 5: Solve for x
   x = 4,547,830.78/2,379.42
6. Step 6: Final answer
   x = 1,911.32