Finding the Fourth Proportional to 1,819.78, 2,510.92 and 1,156.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819.78 : 2,510.92 = 1,156.39 : x
2. Step 2: Convert to fraction form
   1,819.78/2,510.92 = 1,156.39/x
3. Step 3: Cross multiply
   1,819.78x = 2,510.92 × 1,156.39
4. Step 4: Simplify right side
   1,819.78x = 2,903,605.57
5. Step 5: Solve for x
   x = 2,903,605.57/1,819.78
6. Step 6: Final answer
   x = 1,595.58