Finding the Fourth Proportional to 3,498.72, 5,246.59 and 1,305.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,498.72 : 5,246.59 = 1,305.91 : x
2. Step 2: Convert to fraction form
   3,498.72/5,246.59 = 1,305.91/x
3. Step 3: Cross multiply
   3,498.72x = 5,246.59 × 1,305.91
4. Step 4: Simplify right side
   3,498.72x = 6,851,574.35
5. Step 5: Solve for x
   x = 6,851,574.35/3,498.72
6. Step 6: Final answer
   x = 1,958.31