Finding the Fourth Proportional to 1,974.21, 2,724.42 and 1,090.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,974.21 : 2,724.42 = 1,090.05 : x
2. Step 2: Convert to fraction form
   1,974.21/2,724.42 = 1,090.05/x
3. Step 3: Cross multiply
   1,974.21x = 2,724.42 × 1,090.05
4. Step 4: Simplify right side
   1,974.21x = 2,969,754.02
5. Step 5: Solve for x
   x = 2,969,754.02/1,974.21
6. Step 6: Final answer
   x = 1,504.27