Finding the Fourth Proportional to 2,147.82, 2,963.88 and 1,264.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.82 : 2,963.88 = 1,264.11 : x
2. Step 2: Convert to fraction form
   2,147.82/2,963.88 = 1,264.11/x
3. Step 3: Cross multiply
   2,147.82x = 2,963.88 × 1,264.11
4. Step 4: Simplify right side
   2,147.82x = 3,746,670.35
5. Step 5: Solve for x
   x = 3,746,670.35/2,147.82
6. Step 6: Final answer
   x = 1,744.41