Finding the Fourth Proportional to 4,908.63, 7,362.72 and 1,210.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,908.63 : 7,362.72 = 1,210.89 : x
2. Step 2: Convert to fraction form
   4,908.63/7,362.72 = 1,210.89/x
3. Step 3: Cross multiply
   4,908.63x = 7,362.72 × 1,210.89
4. Step 4: Simplify right side
   4,908.63x = 8,915,444.02
5. Step 5: Solve for x
   x = 8,915,444.02/4,908.63
6. Step 6: Final answer
   x = 1,816.28