Finding the Fourth Proportional to 3,545.59, 5,316.60 and 2,065.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,545.59 : 5,316.60 = 2,065.30 : x
2. Step 2: Convert to fraction form
   3,545.59/5,316.60 = 2,065.30/x
3. Step 3: Cross multiply
   3,545.59x = 5,316.60 × 2,065.30
4. Step 4: Simplify right side
   3,545.59x = 10,980,360.69
5. Step 5: Solve for x
   x = 10,980,360.69/3,545.59
6. Step 6: Final answer
   x = 3,096.91