Finding the Fourth Proportional to 1,389,947.58, 2,084,941.89 and 548,491.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,947.58 : 2,084,941.89 = 548,491.50 : x
2. Step 2: Convert to fraction form
   1,389,947.58/2,084,941.89 = 548,491.50/x
3. Step 3: Cross multiply
   1,389,947.58x = 2,084,941.89 × 548,491.50
4. Step 4: Simplify right side
   1,389,947.58x = 1,143,572,904,658.94
5. Step 5: Solve for x
   x = 1,143,572,904,658.94/1,389,947.58
6. Step 6: Final answer
   x = 822,745.35