Finding the Fourth Proportional to 2,550.16, 3,822.17 and 1,316.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.16 : 3,822.17 = 1,316.90 : x
2. Step 2: Convert to fraction form
   2,550.16/3,822.17 = 1,316.90/x
3. Step 3: Cross multiply
   2,550.16x = 3,822.17 × 1,316.90
4. Step 4: Simplify right side
   2,550.16x = 5,033,420.45
5. Step 5: Solve for x
   x = 5,033,420.45/2,550.16
6. Step 6: Final answer
   x = 1,973.76