Finding the Fourth Proportional to 2,643.52, 3,648.86 and 1,946.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643.52 : 3,648.86 = 1,946.92 : x
2. Step 2: Convert to fraction form
   2,643.52/3,648.86 = 1,946.92/x
3. Step 3: Cross multiply
   2,643.52x = 3,648.86 × 1,946.92
4. Step 4: Simplify right side
   2,643.52x = 7,104,038.51
5. Step 5: Solve for x
   x = 7,104,038.51/2,643.52
6. Step 6: Final answer
   x = 2,687.34