Finding the Fourth Proportional to 2,207.61, 3,307.17 and 1,769.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,207.61 : 3,307.17 = 1,769.82 : x
2. Step 2: Convert to fraction form
   2,207.61/3,307.17 = 1,769.82/x
3. Step 3: Cross multiply
   2,207.61x = 3,307.17 × 1,769.82
4. Step 4: Simplify right side
   2,207.61x = 5,853,095.61
5. Step 5: Solve for x
   x = 5,853,095.61/2,207.61
6. Step 6: Final answer
   x = 2,651.33