Finding the Fourth Proportional to 2,090.34, 3,111.61 and 2,059.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.34 : 3,111.61 = 2,059.20 : x
2. Step 2: Convert to fraction form
   2,090.34/3,111.61 = 2,059.20/x
3. Step 3: Cross multiply
   2,090.34x = 3,111.61 × 2,059.20
4. Step 4: Simplify right side
   2,090.34x = 6,407,417.02
5. Step 5: Solve for x
   x = 6,407,417.02/2,090.34
6. Step 6: Final answer
   x = 3,065.26