Finding the Fourth Proportional to 1,140,740, 1,574,221.22 and 631,442.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,740 : 1,574,221.22 = 631,442.37 : x
2. Step 2: Convert to fraction form
   1,140,740/1,574,221.22 = 631,442.37/x
3. Step 3: Cross multiply
   1,140,740x = 1,574,221.22 × 631,442.37
4. Step 4: Simplify right side
   1,140,740x = 994,029,978,061.09
5. Step 5: Solve for x
   x = 994,029,978,061.09/1,140,740
6. Step 6: Final answer
   x = 871,390.48