Finding the Fourth Proportional to 2,308.02, 3,459.87 and 846.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.02 : 3,459.87 = 846.78 : x
2. Step 2: Convert to fraction form
   2,308.02/3,459.87 = 846.78/x
3. Step 3: Cross multiply
   2,308.02x = 3,459.87 × 846.78
4. Step 4: Simplify right side
   2,308.02x = 2,929,748.72
5. Step 5: Solve for x
   x = 2,929,748.72/2,308.02
6. Step 6: Final answer
   x = 1,269.38