Finding the Fourth Proportional to 2,131.90, 2,942.27 and 2,063.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.90 : 2,942.27 = 2,063.86 : x
2. Step 2: Convert to fraction form
   2,131.90/2,942.27 = 2,063.86/x
3. Step 3: Cross multiply
   2,131.90x = 2,942.27 × 2,063.86
4. Step 4: Simplify right side
   2,131.90x = 6,072,433.36
5. Step 5: Solve for x
   x = 6,072,433.36/2,131.90
6. Step 6: Final answer
   x = 2,848.37