Finding the Fourth Proportional to 2,382.93, 3,288.12 and 1,388.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,382.93 : 3,288.12 = 1,388.37 : x
2. Step 2: Convert to fraction form
   2,382.93/3,288.12 = 1,388.37/x
3. Step 3: Cross multiply
   2,382.93x = 3,288.12 × 1,388.37
4. Step 4: Simplify right side
   2,382.93x = 4,565,127.16
5. Step 5: Solve for x
   x = 4,565,127.16/2,382.93
6. Step 6: Final answer
   x = 1,915.76