Finding the Fourth Proportional to 1,810.61, 2,498.67 and 1,064.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.61 : 2,498.67 = 1,064.59 : x
2. Step 2: Convert to fraction form
   1,810.61/2,498.67 = 1,064.59/x
3. Step 3: Cross multiply
   1,810.61x = 2,498.67 × 1,064.59
4. Step 4: Simplify right side
   1,810.61x = 2,660,059.10
5. Step 5: Solve for x
   x = 2,660,059.10/1,810.61
6. Step 6: Final answer
   x = 1,469.15