Finding the Fourth Proportional to 2,019.66, 3,030.30 and 787.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.66 : 3,030.30 = 787.46 : x
2. Step 2: Convert to fraction form
   2,019.66/3,030.30 = 787.46/x
3. Step 3: Cross multiply
   2,019.66x = 3,030.30 × 787.46
4. Step 4: Simplify right side
   2,019.66x = 2,386,224.89
5. Step 5: Solve for x
   x = 2,386,224.89/2,019.66
6. Step 6: Final answer
   x = 1,181.50