Finding the Fourth Proportional to 2,901.27, 4,002.71 and 1,907.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,901.27 : 4,002.71 = 1,907.09 : x
2. Step 2: Convert to fraction form
   2,901.27/4,002.71 = 1,907.09/x
3. Step 3: Cross multiply
   2,901.27x = 4,002.71 × 1,907.09
4. Step 4: Simplify right side
   2,901.27x = 7,633,498.66
5. Step 5: Solve for x
   x = 7,633,498.66/2,901.27
6. Step 6: Final answer
   x = 2,631.09