Finding the Fourth Proportional to 1,907.52, 2,632.89 and 1,161.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,907.52 : 2,632.89 = 1,161.72 : x
2. Step 2: Convert to fraction form
   1,907.52/2,632.89 = 1,161.72/x
3. Step 3: Cross multiply
   1,907.52x = 2,632.89 × 1,161.72
4. Step 4: Simplify right side
   1,907.52x = 3,058,680.97
5. Step 5: Solve for x
   x = 3,058,680.97/1,907.52
6. Step 6: Final answer
   x = 1,603.49