Finding the Fourth Proportional to 1,641.98, 2,462.94 and 667.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.98 : 2,462.94 = 667.46 : x
2. Step 2: Convert to fraction form
   1,641.98/2,462.94 = 667.46/x
3. Step 3: Cross multiply
   1,641.98x = 2,462.94 × 667.46
4. Step 4: Simplify right side
   1,641.98x = 1,643,913.93
5. Step 5: Solve for x
   x = 1,643,913.93/1,641.98
6. Step 6: Final answer
   x = 1,001.18