Finding the Fourth Proportional to 1,090.21, 1,504.82 and 741.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090.21 : 1,504.82 = 741.10 : x
2. Step 2: Convert to fraction form
   1,090.21/1,504.82 = 741.10/x
3. Step 3: Cross multiply
   1,090.21x = 1,504.82 × 741.10
4. Step 4: Simplify right side
   1,090.21x = 1,115,222.10
5. Step 5: Solve for x
   x = 1,115,222.10/1,090.21
6. Step 6: Final answer
   x = 1,022.94