Finding the Fourth Proportional to 2,126.72, 3,189.56 and 894.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.72 : 3,189.56 = 894.15 : x
2. Step 2: Convert to fraction form
   2,126.72/3,189.56 = 894.15/x
3. Step 3: Cross multiply
   2,126.72x = 3,189.56 × 894.15
4. Step 4: Simplify right side
   2,126.72x = 2,851,947.31
5. Step 5: Solve for x
   x = 2,851,947.31/2,126.72
6. Step 6: Final answer
   x = 1,341.01