Finding the Fourth Proportional to 1,199.56, 1,800.83 and 787.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,199.56 : 1,800.83 = 787.41 : x
2. Step 2: Convert to fraction form
   1,199.56/1,800.83 = 787.41/x
3. Step 3: Cross multiply
   1,199.56x = 1,800.83 × 787.41
4. Step 4: Simplify right side
   1,199.56x = 1,417,991.55
5. Step 5: Solve for x
   x = 1,417,991.55/1,199.56
6. Step 6: Final answer
   x = 1,182.09