Finding the Fourth Proportional to 978,897.57, 1,350,857.99 and 543,289.55

Step by Step Solution

1. Step 1: Write the proportion equation
   978,897.57 : 1,350,857.99 = 543,289.55 : x
2. Step 2: Convert to fraction form
   978,897.57/1,350,857.99 = 543,289.55/x
3. Step 3: Cross multiply
   978,897.57x = 1,350,857.99 × 543,289.55
4. Step 4: Simplify right side
   978,897.57x = 733,907,020,030.27
5. Step 5: Solve for x
   x = 733,907,020,030.27/978,897.57
6. Step 6: Final answer
   x = 749,728.10