Finding the Fourth Proportional to 2,301.78, 3,453.12 and 914.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.78 : 3,453.12 = 914.86 : x
2. Step 2: Convert to fraction form
   2,301.78/3,453.12 = 914.86/x
3. Step 3: Cross multiply
   2,301.78x = 3,453.12 × 914.86
4. Step 4: Simplify right side
   2,301.78x = 3,159,099.52
5. Step 5: Solve for x
   x = 3,159,099.52/2,301.78
6. Step 6: Final answer
   x = 1,372.46