Finding the Fourth Proportional to 3,507.06, 5,259.69 and 1,041.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507.06 : 5,259.69 = 1,041.21 : x
2. Step 2: Convert to fraction form
   3,507.06/5,259.69 = 1,041.21/x
3. Step 3: Cross multiply
   3,507.06x = 5,259.69 × 1,041.21
4. Step 4: Simplify right side
   3,507.06x = 5,476,441.82
5. Step 5: Solve for x
   x = 5,476,441.82/3,507.06
6. Step 6: Final answer
   x = 1,561.55