Finding the Fourth Proportional to 2,090.85, 2,885.40 and 1,146.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.85 : 2,885.40 = 1,146.69 : x
2. Step 2: Convert to fraction form
   2,090.85/2,885.40 = 1,146.69/x
3. Step 3: Cross multiply
   2,090.85x = 2,885.40 × 1,146.69
4. Step 4: Simplify right side
   2,090.85x = 3,308,659.33
5. Step 5: Solve for x
   x = 3,308,659.33/2,090.85
6. Step 6: Final answer
   x = 1,582.45