Finding the Fourth Proportional to 2,667.02, 3,999.11 and 1,022.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.02 : 3,999.11 = 1,022.63 : x
2. Step 2: Convert to fraction form
   2,667.02/3,999.11 = 1,022.63/x
3. Step 3: Cross multiply
   2,667.02x = 3,999.11 × 1,022.63
4. Step 4: Simplify right side
   2,667.02x = 4,089,584.75
5. Step 5: Solve for x
   x = 4,089,584.75/2,667.02
6. Step 6: Final answer
   x = 1,533.39