Finding the Fourth Proportional to 2,907.98, 4,011.70 and 1,963.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,907.98 : 4,011.70 = 1,963.48 : x
2. Step 2: Convert to fraction form
   2,907.98/4,011.70 = 1,963.48/x
3. Step 3: Cross multiply
   2,907.98x = 4,011.70 × 1,963.48
4. Step 4: Simplify right side
   2,907.98x = 7,876,892.72
5. Step 5: Solve for x
   x = 7,876,892.72/2,907.98
6. Step 6: Final answer
   x = 2,708.72