Finding the Fourth Proportional to 1,544.80, 2,131.90 and 846.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,544.80 : 2,131.90 = 846.17 : x
2. Step 2: Convert to fraction form
   1,544.80/2,131.90 = 846.17/x
3. Step 3: Cross multiply
   1,544.80x = 2,131.90 × 846.17
4. Step 4: Simplify right side
   1,544.80x = 1,803,949.82
5. Step 5: Solve for x
   x = 1,803,949.82/1,544.80
6. Step 6: Final answer
   x = 1,167.76