Finding the Fourth Proportional to 2,178.88, 3,007.46 and 1,382.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.88 : 3,007.46 = 1,382.34 : x
2. Step 2: Convert to fraction form
   2,178.88/3,007.46 = 1,382.34/x
3. Step 3: Cross multiply
   2,178.88x = 3,007.46 × 1,382.34
4. Step 4: Simplify right side
   2,178.88x = 4,157,332.26
5. Step 5: Solve for x
   x = 4,157,332.26/2,178.88
6. Step 6: Final answer
   x = 1,908.01