Finding the Fourth Proportional to 3,156.67, 4,727.94 and 2,538.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,156.67 : 4,727.94 = 2,538.82 : x
2. Step 2: Convert to fraction form
   3,156.67/4,727.94 = 2,538.82/x
3. Step 3: Cross multiply
   3,156.67x = 4,727.94 × 2,538.82
4. Step 4: Simplify right side
   3,156.67x = 12,003,388.63
5. Step 5: Solve for x
   x = 12,003,388.63/3,156.67
6. Step 6: Final answer
   x = 3,802.55