Finding the Fourth Proportional to 3,526.05, 4,865.61 and 2,109.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,526.05 : 4,865.61 = 2,109.45 : x
2. Step 2: Convert to fraction form
   3,526.05/4,865.61 = 2,109.45/x
3. Step 3: Cross multiply
   3,526.05x = 4,865.61 × 2,109.45
4. Step 4: Simplify right side
   3,526.05x = 10,263,761.01
5. Step 5: Solve for x
   x = 10,263,761.01/3,526.05
6. Step 6: Final answer
   x = 2,910.84