Finding the Fourth Proportional to 2,868.03, 4,300.62 and 919.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.03 : 4,300.62 = 919.98 : x
2. Step 2: Convert to fraction form
   2,868.03/4,300.62 = 919.98/x
3. Step 3: Cross multiply
   2,868.03x = 4,300.62 × 919.98
4. Step 4: Simplify right side
   2,868.03x = 3,956,484.39
5. Step 5: Solve for x
   x = 3,956,484.39/2,868.03
6. Step 6: Final answer
   x = 1,379.51