Finding the Fourth Proportional to 2,609.01, 3,913.61 and 1,147.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609.01 : 3,913.61 = 1,147.82 : x
2. Step 2: Convert to fraction form
   2,609.01/3,913.61 = 1,147.82/x
3. Step 3: Cross multiply
   2,609.01x = 3,913.61 × 1,147.82
4. Step 4: Simplify right side
   2,609.01x = 4,492,094.52
5. Step 5: Solve for x
   x = 4,492,094.52/2,609.01
6. Step 6: Final answer
   x = 1,721.76