Finding the Fourth Proportional to 2,667.77, 4,002.23 and 912.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.77 : 4,002.23 = 912.93 : x
2. Step 2: Convert to fraction form
   2,667.77/4,002.23 = 912.93/x
3. Step 3: Cross multiply
   2,667.77x = 4,002.23 × 912.93
4. Step 4: Simplify right side
   2,667.77x = 3,653,755.83
5. Step 5: Solve for x
   x = 3,653,755.83/2,667.77
6. Step 6: Final answer
   x = 1,369.59