Finding the Fourth Proportional to 2,621.42, 3,614.61 and 1,912.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.42 : 3,614.61 = 1,912.01 : x
2. Step 2: Convert to fraction form
   2,621.42/3,614.61 = 1,912.01/x
3. Step 3: Cross multiply
   2,621.42x = 3,614.61 × 1,912.01
4. Step 4: Simplify right side
   2,621.42x = 6,911,152.39
5. Step 5: Solve for x
   x = 6,911,152.39/2,621.42
6. Step 6: Final answer
   x = 2,636.42