Finding the Fourth Proportional to 3,507.55, 5,261.86 and 1,042.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507.55 : 5,261.86 = 1,042.06 : x
2. Step 2: Convert to fraction form
   3,507.55/5,261.86 = 1,042.06/x
3. Step 3: Cross multiply
   3,507.55x = 5,261.86 × 1,042.06
4. Step 4: Simplify right side
   3,507.55x = 5,483,173.83
5. Step 5: Solve for x
   x = 5,483,173.83/3,507.55
6. Step 6: Final answer
   x = 1,563.25