Finding the Fourth Proportional to 2,862,978, 4,294,492.92 and 868,434

Step by Step Solution

1. Step 1: Write the proportion equation
   2,862,978 : 4,294,492.92 = 868,434 : x
2. Step 2: Convert to fraction form
   2,862,978/4,294,492.92 = 868,434/x
3. Step 3: Cross multiply
   2,862,978x = 4,294,492.92 × 868,434
4. Step 4: Simplify right side
   2,862,978x = 3,729,483,664,487.28
5. Step 5: Solve for x
   x = 3,729,483,664,487.28/2,862,978
6. Step 6: Final answer
   x = 1,302,658.86