Finding the Fourth Proportional to 2,011.43, 2,776.28 and 1,422.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.43 : 2,776.28 = 1,422.16 : x
2. Step 2: Convert to fraction form
   2,011.43/2,776.28 = 1,422.16/x
3. Step 3: Cross multiply
   2,011.43x = 2,776.28 × 1,422.16
4. Step 4: Simplify right side
   2,011.43x = 3,948,300.31
5. Step 5: Solve for x
   x = 3,948,300.31/2,011.43
6. Step 6: Final answer
   x = 1,962.93