Finding the Fourth Proportional to 2,131.62, 2,940.63 and 1,246.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.62 : 2,940.63 = 1,246.88 : x
2. Step 2: Convert to fraction form
   2,131.62/2,940.63 = 1,246.88/x
3. Step 3: Cross multiply
   2,131.62x = 2,940.63 × 1,246.88
4. Step 4: Simplify right side
   2,131.62x = 3,666,598.03
5. Step 5: Solve for x
   x = 3,666,598.03/2,131.62
6. Step 6: Final answer
   x = 1,720.10