Finding the Fourth Proportional to 4,774.31, 7,162.83 and 2,142.59

Step by Step Solution

1. Step 1: Write the proportion equation
   4,774.31 : 7,162.83 = 2,142.59 : x
2. Step 2: Convert to fraction form
   4,774.31/7,162.83 = 2,142.59/x
3. Step 3: Cross multiply
   4,774.31x = 7,162.83 × 2,142.59
4. Step 4: Simplify right side
   4,774.31x = 15,346,972.12
5. Step 5: Solve for x
   x = 15,346,972.12/4,774.31
6. Step 6: Final answer
   x = 3,214.49