Finding the Fourth Proportional to 1,665.16, 2,499.28 and 844.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.16 : 2,499.28 = 844.01 : x
2. Step 2: Convert to fraction form
   1,665.16/2,499.28 = 844.01/x
3. Step 3: Cross multiply
   1,665.16x = 2,499.28 × 844.01
4. Step 4: Simplify right side
   1,665.16x = 2,109,412.08
5. Step 5: Solve for x
   x = 2,109,412.08/1,665.16
6. Step 6: Final answer
   x = 1,266.79