Finding the Fourth Proportional to 1,779.26, 2,667.27 and 999.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.26 : 2,667.27 = 999.23 : x
2. Step 2: Convert to fraction form
   1,779.26/2,667.27 = 999.23/x
3. Step 3: Cross multiply
   1,779.26x = 2,667.27 × 999.23
4. Step 4: Simplify right side
   1,779.26x = 2,665,216.20
5. Step 5: Solve for x
   x = 2,665,216.20/1,779.26
6. Step 6: Final answer
   x = 1,497.94