Finding the Fourth Proportional to 2,196.63, 3,032.24 and 1,312.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.63 : 3,032.24 = 1,312.27 : x
2. Step 2: Convert to fraction form
   2,196.63/3,032.24 = 1,312.27/x
3. Step 3: Cross multiply
   2,196.63x = 3,032.24 × 1,312.27
4. Step 4: Simplify right side
   2,196.63x = 3,979,114.81
5. Step 5: Solve for x
   x = 3,979,114.81/2,196.63
6. Step 6: Final answer
   x = 1,811.46