Finding the Fourth Proportional to 3,507.96, 5,262.83 and 1,042.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,507.96 : 5,262.83 = 1,042.78 : x
2. Step 2: Convert to fraction form
   3,507.96/5,262.83 = 1,042.78/x
3. Step 3: Cross multiply
   3,507.96x = 5,262.83 × 1,042.78
4. Step 4: Simplify right side
   3,507.96x = 5,487,955.37
5. Step 5: Solve for x
   x = 5,487,955.37/3,507.96
6. Step 6: Final answer
   x = 1,564.43