Finding the Fourth Proportional to 1,410.56, 2,116.01 and 486.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.56 : 2,116.01 = 486.29 : x
2. Step 2: Convert to fraction form
   1,410.56/2,116.01 = 486.29/x
3. Step 3: Cross multiply
   1,410.56x = 2,116.01 × 486.29
4. Step 4: Simplify right side
   1,410.56x = 1,028,994.50
5. Step 5: Solve for x
   x = 1,028,994.50/1,410.56
6. Step 6: Final answer
   x = 729.49