Finding the Fourth Proportional to 1,816.14, 2,506.06 and 1,069.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,816.14 : 2,506.06 = 1,069.72 : x
2. Step 2: Convert to fraction form
   1,816.14/2,506.06 = 1,069.72/x
3. Step 3: Cross multiply
   1,816.14x = 2,506.06 × 1,069.72
4. Step 4: Simplify right side
   1,816.14x = 2,680,782.50
5. Step 5: Solve for x
   x = 2,680,782.50/1,816.14
6. Step 6: Final answer
   x = 1,476.09