Finding the Fourth Proportional to 3,567.56, 5,345.72 and 1,691.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,567.56 : 5,345.72 = 1,691.30 : x
2. Step 2: Convert to fraction form
   3,567.56/5,345.72 = 1,691.30/x
3. Step 3: Cross multiply
   3,567.56x = 5,345.72 × 1,691.30
4. Step 4: Simplify right side
   3,567.56x = 9,041,181.05
5. Step 5: Solve for x
   x = 9,041,181.05/3,567.56
6. Step 6: Final answer
   x = 2,534.28