Finding the Fourth Proportional to 2,151.78, 2,963.81 and 1,653.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.78 : 2,963.81 = 1,653.47 : x
2. Step 2: Convert to fraction form
   2,151.78/2,963.81 = 1,653.47/x
3. Step 3: Cross multiply
   2,151.78x = 2,963.81 × 1,653.47
4. Step 4: Simplify right side
   2,151.78x = 4,900,562.65
5. Step 5: Solve for x
   x = 4,900,562.65/2,151.78
6. Step 6: Final answer
   x = 2,277.45