Finding the Fourth Proportional to 2,354.87, 3,249.72 and 1,306.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,354.87 : 3,249.72 = 1,306.91 : x
2. Step 2: Convert to fraction form
   2,354.87/3,249.72 = 1,306.91/x
3. Step 3: Cross multiply
   2,354.87x = 3,249.72 × 1,306.91
4. Step 4: Simplify right side
   2,354.87x = 4,247,075.32
5. Step 5: Solve for x
   x = 4,247,075.32/2,354.87
6. Step 6: Final answer
   x = 1,803.53