Finding the Fourth Proportional to 2,653.23, 3,978.32 and 1,094.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,653.23 : 3,978.32 = 1,094.31 : x
2. Step 2: Convert to fraction form
   2,653.23/3,978.32 = 1,094.31/x
3. Step 3: Cross multiply
   2,653.23x = 3,978.32 × 1,094.31
4. Step 4: Simplify right side
   2,653.23x = 4,353,509.89
5. Step 5: Solve for x
   x = 4,353,509.89/2,653.23
6. Step 6: Final answer
   x = 1,640.83