Finding the Fourth Proportional to 2,307.78, 3,459.38 and 846.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.78 : 3,459.38 = 846.54 : x
2. Step 2: Convert to fraction form
   2,307.78/3,459.38 = 846.54/x
3. Step 3: Cross multiply
   2,307.78x = 3,459.38 × 846.54
4. Step 4: Simplify right side
   2,307.78x = 2,928,499.31
5. Step 5: Solve for x
   x = 2,928,499.31/2,307.78
6. Step 6: Final answer
   x = 1,268.97