Finding the Fourth Proportional to 2,641.80, 3,953.34 and 1,946.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.80 : 3,953.34 = 1,946.82 : x
2. Step 2: Convert to fraction form
   2,641.80/3,953.34 = 1,946.82/x
3. Step 3: Cross multiply
   2,641.80x = 3,953.34 × 1,946.82
4. Step 4: Simplify right side
   2,641.80x = 7,696,441.38
5. Step 5: Solve for x
   x = 7,696,441.38/2,641.80
6. Step 6: Final answer
   x = 2,913.33