Finding the Fourth Proportional to 4,779.37, 7,164.96 and 1,816.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,779.37 : 7,164.96 = 1,816.15 : x
2. Step 2: Convert to fraction form
   4,779.37/7,164.96 = 1,816.15/x
3. Step 3: Cross multiply
   4,779.37x = 7,164.96 × 1,816.15
4. Step 4: Simplify right side
   4,779.37x = 13,012,642.10
5. Step 5: Solve for x
   x = 13,012,642.10/4,779.37
6. Step 6: Final answer
   x = 2,722.67