Finding the Fourth Proportional to 2,238,686.20, 3,089,496.56 and 1,258,933.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238,686.20 : 3,089,496.56 = 1,258,933.56 : x
2. Step 2: Convert to fraction form
   2,238,686.20/3,089,496.56 = 1,258,933.56/x
3. Step 3: Cross multiply
   2,238,686.20x = 3,089,496.56 × 1,258,933.56
4. Step 4: Simplify right side
   2,238,686.20x = 3,889,470,902,888.55
5. Step 5: Solve for x
   x = 3,889,470,902,888.55/2,238,686.20
6. Step 6: Final answer
   x = 1,737,389.95