Finding the Fourth Proportional to 2,380.09, 3,284.98 and 1,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.09 : 3,284.98 = 1,385.52 : x
2. Step 2: Convert to fraction form
   2,380.09/3,284.98 = 1,385.52/x
3. Step 3: Cross multiply
   2,380.09x = 3,284.98 × 1,385.52
4. Step 4: Simplify right side
   2,380.09x = 4,551,405.49
5. Step 5: Solve for x
   x = 4,551,405.49/2,380.09
6. Step 6: Final answer
   x = 1,912.28