Finding the Fourth Proportional to 3,506, 5,256.15 and 1,426.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,506 : 5,256.15 = 1,426.98 : x
2. Step 2: Convert to fraction form
   3,506/5,256.15 = 1,426.98/x
3. Step 3: Cross multiply
   3,506x = 5,256.15 × 1,426.98
4. Step 4: Simplify right side
   3,506x = 7,500,420.93
5. Step 5: Solve for x
   x = 7,500,420.93/3,506
6. Step 6: Final answer
   x = 2,139.31