Finding the Fourth Proportional to 4,722.72, 7,085.10 and 1,435.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,722.72 : 7,085.10 = 1,435.56 : x
2. Step 2: Convert to fraction form
   4,722.72/7,085.10 = 1,435.56/x
3. Step 3: Cross multiply
   4,722.72x = 7,085.10 × 1,435.56
4. Step 4: Simplify right side
   4,722.72x = 10,171,086.16
5. Step 5: Solve for x
   x = 10,171,086.16/4,722.72
6. Step 6: Final answer
   x = 2,153.65