Finding the Fourth Proportional to 3,818,098.70, 5,727,018.45 and 978,238.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,818,098.70 : 5,727,018.45 = 978,238.70 : x
2. Step 2: Convert to fraction form
   3,818,098.70/5,727,018.45 = 978,238.70/x
3. Step 3: Cross multiply
   3,818,098.70x = 5,727,018.45 × 978,238.70
4. Step 4: Simplify right side
   3,818,098.70x = 5,602,391,083,404.01
5. Step 5: Solve for x
   x = 5,602,391,083,404.01/3,818,098.70
6. Step 6: Final answer
   x = 1,467,324.85