Finding the Fourth Proportional to 1,819.18, 2,510.22 and 1,011.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819.18 : 2,510.22 = 1,011.62 : x
2. Step 2: Convert to fraction form
   1,819.18/2,510.22 = 1,011.62/x
3. Step 3: Cross multiply
   1,819.18x = 2,510.22 × 1,011.62
4. Step 4: Simplify right side
   1,819.18x = 2,539,388.76
5. Step 5: Solve for x
   x = 2,539,388.76/1,819.18
6. Step 6: Final answer
   x = 1,395.90