Finding the Fourth Proportional to 1,978,045.27, 2,968,286.15 and 779,763.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,045.27 : 2,968,286.15 = 779,763.67 : x
2. Step 2: Convert to fraction form
   1,978,045.27/2,968,286.15 = 779,763.67/x
3. Step 3: Cross multiply
   1,978,045.27x = 2,968,286.15 × 779,763.67
4. Step 4: Simplify right side
   1,978,045.27x = 2,314,561,701,934.17
5. Step 5: Solve for x
   x = 2,314,561,701,934.17/1,978,045.27
6. Step 6: Final answer
   x = 1,170,125.75