Finding the Fourth Proportional to 2,130.63, 3,196.41 and 899.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.63 : 3,196.41 = 899.09 : x
2. Step 2: Convert to fraction form
   2,130.63/3,196.41 = 899.09/x
3. Step 3: Cross multiply
   2,130.63x = 3,196.41 × 899.09
4. Step 4: Simplify right side
   2,130.63x = 2,873,860.27
5. Step 5: Solve for x
   x = 2,873,860.27/2,130.63
6. Step 6: Final answer
   x = 1,348.83