Finding the Fourth Proportional to 1,810.87, 2,499.01 and 1,064.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810.87 : 2,499.01 = 1,064.86 : x
2. Step 2: Convert to fraction form
   1,810.87/2,499.01 = 1,064.86/x
3. Step 3: Cross multiply
   1,810.87x = 2,499.01 × 1,064.86
4. Step 4: Simplify right side
   1,810.87x = 2,661,086.88
5. Step 5: Solve for x
   x = 2,661,086.88/1,810.87
6. Step 6: Final answer
   x = 1,469.51