Finding the Fourth Proportional to 2,488.86, 3,735.15 and 930.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.86 : 3,735.15 = 930.30 : x
2. Step 2: Convert to fraction form
   2,488.86/3,735.15 = 930.30/x
3. Step 3: Cross multiply
   2,488.86x = 3,735.15 × 930.30
4. Step 4: Simplify right side
   2,488.86x = 3,474,810.05
5. Step 5: Solve for x
   x = 3,474,810.05/2,488.86
6. Step 6: Final answer
   x = 1,396.15