Finding the Fourth Proportional to 3,565.02, 5,345.72 and 1,690.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,565.02 : 5,345.72 = 1,690.34 : x
2. Step 2: Convert to fraction form
   3,565.02/5,345.72 = 1,690.34/x
3. Step 3: Cross multiply
   3,565.02x = 5,345.72 × 1,690.34
4. Step 4: Simplify right side
   3,565.02x = 9,036,084.34
5. Step 5: Solve for x
   x = 9,036,084.34/3,565.02
6. Step 6: Final answer
   x = 2,534.65