Finding the Fourth Proportional to 2,053.44, 3,078.24 and 899.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,053.44 : 3,078.24 = 899.04 : x
2. Step 2: Convert to fraction form
   2,053.44/3,078.24 = 899.04/x
3. Step 3: Cross multiply
   2,053.44x = 3,078.24 × 899.04
4. Step 4: Simplify right side
   2,053.44x = 2,767,460.89
5. Step 5: Solve for x
   x = 2,767,460.89/2,053.44
6. Step 6: Final answer
   x = 1,347.72