Finding the Fourth Proportional to 2,062.25, 3,090.27 and 1,239.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.25 : 3,090.27 = 1,239.62 : x
2. Step 2: Convert to fraction form
   2,062.25/3,090.27 = 1,239.62/x
3. Step 3: Cross multiply
   2,062.25x = 3,090.27 × 1,239.62
4. Step 4: Simplify right side
   2,062.25x = 3,830,760.50
5. Step 5: Solve for x
   x = 3,830,760.50/2,062.25
6. Step 6: Final answer
   x = 1,857.56