Finding the Fourth Proportional to 1,810.89, 2,499.62 and 1,064.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.89 : 2,499.62 = 1,064.81 : x
2. Step 2: Convert to fraction form
   1,810.89/2,499.62 = 1,064.81/x
3. Step 3: Cross multiply
   1,810.89x = 2,499.62 × 1,064.81
4. Step 4: Simplify right side
   1,810.89x = 2,661,620.37
5. Step 5: Solve for x
   x = 2,661,620.37/1,810.89
6. Step 6: Final answer
   x = 1,469.79