Finding the Fourth Proportional to 2,572.95, 3,865.59 and 1,650.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.95 : 3,865.59 = 1,650.31 : x
2. Step 2: Convert to fraction form
   2,572.95/3,865.59 = 1,650.31/x
3. Step 3: Cross multiply
   2,572.95x = 3,865.59 × 1,650.31
4. Step 4: Simplify right side
   2,572.95x = 6,379,412.17
5. Step 5: Solve for x
   x = 6,379,412.17/2,572.95
6. Step 6: Final answer
   x = 2,479.41