Finding the Fourth Proportional to 1,859.33, 2,788.81 and 981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.33 : 2,788.81 = 981.50 : x
2. Step 2: Convert to fraction form
   1,859.33/2,788.81 = 981.50/x
3. Step 3: Cross multiply
   1,859.33x = 2,788.81 × 981.50
4. Step 4: Simplify right side
   1,859.33x = 2,737,200.62
5. Step 5: Solve for x
   x = 2,737,200.62/1,859.33
6. Step 6: Final answer
   x = 1,472.14