Finding the Fourth Proportional to 2,870.74, 4,306.79 and 1,022.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.74 : 4,306.79 = 1,022.02 : x
2. Step 2: Convert to fraction form
   2,870.74/4,306.79 = 1,022.02/x
3. Step 3: Cross multiply
   2,870.74x = 4,306.79 × 1,022.02
4. Step 4: Simplify right side
   2,870.74x = 4,401,617.30
5. Step 5: Solve for x
   x = 4,401,617.30/2,870.74
6. Step 6: Final answer
   x = 1,533.27