Finding the Fourth Proportional to 3,978,699.58, 5,969,213.94 and 1,282,970.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978,699.58 : 5,969,213.94 = 1,282,970.59 : x
2. Step 2: Convert to fraction form
   3,978,699.58/5,969,213.94 = 1,282,970.59/x
3. Step 3: Cross multiply
   3,978,699.58x = 5,969,213.94 × 1,282,970.59
4. Step 4: Simplify right side
   3,978,699.58x = 7,658,325,930,438.03
5. Step 5: Solve for x
   x = 7,658,325,930,438.03/3,978,699.58
6. Step 6: Final answer
   x = 1,924,831.41