Finding the Fourth Proportional to 1,862.56, 2,570.32 and 1,011.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,862.56 : 2,570.32 = 1,011.83 : x
2. Step 2: Convert to fraction form
   1,862.56/2,570.32 = 1,011.83/x
3. Step 3: Cross multiply
   1,862.56x = 2,570.32 × 1,011.83
4. Step 4: Simplify right side
   1,862.56x = 2,600,721.83
5. Step 5: Solve for x
   x = 2,600,721.83/1,862.56
6. Step 6: Final answer
   x = 1,396.32