Finding the Fourth Proportional to 2,210.89, 3,316.77 and 730.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210.89 : 3,316.77 = 730.05 : x
2. Step 2: Convert to fraction form
   2,210.89/3,316.77 = 730.05/x
3. Step 3: Cross multiply
   2,210.89x = 3,316.77 × 730.05
4. Step 4: Simplify right side
   2,210.89x = 2,421,404.29
5. Step 5: Solve for x
   x = 2,421,404.29/2,210.89
6. Step 6: Final answer
   x = 1,095.22