Finding the Fourth Proportional to 2,878.28, 4,316.00 and 930.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,878.28 : 4,316.00 = 930.23 : x
2. Step 2: Convert to fraction form
   2,878.28/4,316.00 = 930.23/x
3. Step 3: Cross multiply
   2,878.28x = 4,316.00 × 930.23
4. Step 4: Simplify right side
   2,878.28x = 4,014,846.45
5. Step 5: Solve for x
   x = 4,014,846.45/2,878.28
6. Step 6: Final answer
   x = 1,394.88