Finding the Fourth Proportional to 1,650.62, 2,279.40 and 1,317.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,650.62 : 2,279.40 = 1,317.98 : x
2. Step 2: Convert to fraction form
   1,650.62/2,279.40 = 1,317.98/x
3. Step 3: Cross multiply
   1,650.62x = 2,279.40 × 1,317.98
4. Step 4: Simplify right side
   1,650.62x = 3,004,203.61
5. Step 5: Solve for x
   x = 3,004,203.61/1,650.62
6. Step 6: Final answer
   x = 1,820.05