Finding the Fourth Proportional to 2,136.79, 3,200.93 and 1,404.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.79 : 3,200.93 = 1,404.15 : x
2. Step 2: Convert to fraction form
   2,136.79/3,200.93 = 1,404.15/x
3. Step 3: Cross multiply
   2,136.79x = 3,200.93 × 1,404.15
4. Step 4: Simplify right side
   2,136.79x = 4,494,572.10
5. Step 5: Solve for x
   x = 4,494,572.10/2,136.79
6. Step 6: Final answer
   x = 2,103.42