Finding the Fourth Proportional to 1,784.97, 2,464.62 and 1,391.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.97 : 2,464.62 = 1,391.31 : x
2. Step 2: Convert to fraction form
   1,784.97/2,464.62 = 1,391.31/x
3. Step 3: Cross multiply
   1,784.97x = 2,464.62 × 1,391.31
4. Step 4: Simplify right side
   1,784.97x = 3,429,050.45
5. Step 5: Solve for x
   x = 3,429,050.45/1,784.97
6. Step 6: Final answer
   x = 1,921.07