Finding the Fourth Proportional to 3,826.45, 5,731.88 and 3,507.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826.45 : 5,731.88 = 3,507.51 : x
2. Step 2: Convert to fraction form
   3,826.45/5,731.88 = 3,507.51/x
3. Step 3: Cross multiply
   3,826.45x = 5,731.88 × 3,507.51
4. Step 4: Simplify right side
   3,826.45x = 20,104,608.00
5. Step 5: Solve for x
   x = 20,104,608.00/3,826.45
6. Step 6: Final answer
   x = 5,254.12