Finding the Fourth Proportional to 2,380.34, 3,284.60 and 1,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.34 : 3,284.60 = 1,385.52 : x
2. Step 2: Convert to fraction form
   2,380.34/3,284.60 = 1,385.52/x
3. Step 3: Cross multiply
   2,380.34x = 3,284.60 × 1,385.52
4. Step 4: Simplify right side
   2,380.34x = 4,550,872.06
5. Step 5: Solve for x
   x = 4,550,872.06/2,380.34
6. Step 6: Final answer
   x = 1,911.86