Finding the Fourth Proportional to 4,784.42, 7,173.32 and 2,439.87

Step by Step Solution

1. Step 1: Write the proportion equation
   4,784.42 : 7,173.32 = 2,439.87 : x
2. Step 2: Convert to fraction form
   4,784.42/7,173.32 = 2,439.87/x
3. Step 3: Cross multiply
   4,784.42x = 7,173.32 × 2,439.87
4. Step 4: Simplify right side
   4,784.42x = 17,501,956.07
5. Step 5: Solve for x
   x = 17,501,956.07/4,784.42
6. Step 6: Final answer
   x = 3,658.12