Finding the Fourth Proportional to 3,705.16, 5,566.72 and 2,389.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,705.16 : 5,566.72 = 2,389.54 : x
2. Step 2: Convert to fraction form
   3,705.16/5,566.72 = 2,389.54/x
3. Step 3: Cross multiply
   3,705.16x = 5,566.72 × 2,389.54
4. Step 4: Simplify right side
   3,705.16x = 13,301,900.11
5. Step 5: Solve for x
   x = 13,301,900.11/3,705.16
6. Step 6: Final answer
   x = 3,590.10