Finding the Fourth Proportional to 1,617.82, 2,422.38 and 846.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.82 : 2,422.38 = 846.70 : x
2. Step 2: Convert to fraction form
   1,617.82/2,422.38 = 846.70/x
3. Step 3: Cross multiply
   1,617.82x = 2,422.38 × 846.70
4. Step 4: Simplify right side
   1,617.82x = 2,051,029.15
5. Step 5: Solve for x
   x = 2,051,029.15/1,617.82
6. Step 6: Final answer
   x = 1,267.77