Finding the Fourth Proportional to 1,422.68, 1,962.42 and 1,090.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.68 : 1,962.42 = 1,090.58 : x
2. Step 2: Convert to fraction form
   1,422.68/1,962.42 = 1,090.58/x
3. Step 3: Cross multiply
   1,422.68x = 1,962.42 × 1,090.58
4. Step 4: Simplify right side
   1,422.68x = 2,140,176.00
5. Step 5: Solve for x
   x = 2,140,176.00/1,422.68
6. Step 6: Final answer
   x = 1,504.33