Finding the Fourth Proportional to 2,131.45, 3,195.57 and 1,436.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.45 : 3,195.57 = 1,436.16 : x
2. Step 2: Convert to fraction form
   2,131.45/3,195.57 = 1,436.16/x
3. Step 3: Cross multiply
   2,131.45x = 3,195.57 × 1,436.16
4. Step 4: Simplify right side
   2,131.45x = 4,589,349.81
5. Step 5: Solve for x
   x = 4,589,349.81/2,131.45
6. Step 6: Final answer
   x = 2,153.16