Finding the Fourth Proportional to 2,059.64, 3,090.24 and 1,238.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.64 : 3,090.24 = 1,238.49 : x
2. Step 2: Convert to fraction form
   2,059.64/3,090.24 = 1,238.49/x
3. Step 3: Cross multiply
   2,059.64x = 3,090.24 × 1,238.49
4. Step 4: Simplify right side
   2,059.64x = 3,827,231.34
5. Step 5: Solve for x
   x = 3,827,231.34/2,059.64
6. Step 6: Final answer
   x = 1,858.21