Finding the Fourth Proportional to 2,090.61, 2,885.09 and 1,146.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.61 : 2,885.09 = 1,146.42 : x
2. Step 2: Convert to fraction form
   2,090.61/2,885.09 = 1,146.42/x
3. Step 3: Cross multiply
   2,090.61x = 2,885.09 × 1,146.42
4. Step 4: Simplify right side
   2,090.61x = 3,307,519.15
5. Step 5: Solve for x
   x = 3,307,519.15/2,090.61
6. Step 6: Final answer
   x = 1,582.08