Finding the Fourth Proportional to 1,666.18, 2,499.67 and 844.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666.18 : 2,499.67 = 844.43 : x
2. Step 2: Convert to fraction form
   1,666.18/2,499.67 = 844.43/x
3. Step 3: Cross multiply
   1,666.18x = 2,499.67 × 844.43
4. Step 4: Simplify right side
   1,666.18x = 2,110,796.34
5. Step 5: Solve for x
   x = 2,110,796.34/1,666.18
6. Step 6: Final answer
   x = 1,266.85