Finding the Fourth Proportional to 1,810.86, 2,499.58 and 1,064.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.86 : 2,499.58 = 1,064.78 : x
2. Step 2: Convert to fraction form
   1,810.86/2,499.58 = 1,064.78/x
3. Step 3: Cross multiply
   1,810.86x = 2,499.58 × 1,064.78
4. Step 4: Simplify right side
   1,810.86x = 2,661,495.01
5. Step 5: Solve for x
   x = 2,661,495.01/1,810.86
6. Step 6: Final answer
   x = 1,469.74