Finding the Fourth Proportional to 1,801.91, 2,702.72 and 631.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.91 : 2,702.72 = 631.82 : x
2. Step 2: Convert to fraction form
   1,801.91/2,702.72 = 631.82/x
3. Step 3: Cross multiply
   1,801.91x = 2,702.72 × 631.82
4. Step 4: Simplify right side
   1,801.91x = 1,707,615.88
5. Step 5: Solve for x
   x = 1,707,615.88/1,801.91
6. Step 6: Final answer
   x = 947.67