Finding the Fourth Proportional to 1,811.53, 2,499.87 and 1,065.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.53 : 2,499.87 = 1,065.33 : x
2. Step 2: Convert to fraction form
   1,811.53/2,499.87 = 1,065.33/x
3. Step 3: Cross multiply
   1,811.53x = 2,499.87 × 1,065.33
4. Step 4: Simplify right side
   1,811.53x = 2,663,174.01
5. Step 5: Solve for x
   x = 2,663,174.01/1,811.53
6. Step 6: Final answer
   x = 1,470.12