Finding the Fourth Proportional to 1,443,280.78, 1,991,731.35 and 798,745.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,280.78 : 1,991,731.35 = 798,745.42 : x
2. Step 2: Convert to fraction form
   1,443,280.78/1,991,731.35 = 798,745.42/x
3. Step 3: Cross multiply
   1,443,280.78x = 1,991,731.35 × 798,745.42
4. Step 4: Simplify right side
   1,443,280.78x = 1,590,886,293,682.92
5. Step 5: Solve for x
   x = 1,590,886,293,682.92/1,443,280.78
6. Step 6: Final answer
   x = 1,102,270.82