Finding the Fourth Proportional to 3,561.98, 5,339.72 and 1,372.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.98 : 5,339.72 = 1,372.34 : x
2. Step 2: Convert to fraction form
   3,561.98/5,339.72 = 1,372.34/x
3. Step 3: Cross multiply
   3,561.98x = 5,339.72 × 1,372.34
4. Step 4: Simplify right side
   3,561.98x = 7,327,928.12
5. Step 5: Solve for x
   x = 7,327,928.12/3,561.98
6. Step 6: Final answer
   x = 2,057.27