Finding the Fourth Proportional to 1,978,976.54, 2,731,108.39 and 1,107,794.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,976.54 : 2,731,108.39 = 1,107,794.21 : x
2. Step 2: Convert to fraction form
   1,978,976.54/2,731,108.39 = 1,107,794.21/x
3. Step 3: Cross multiply
   1,978,976.54x = 2,731,108.39 × 1,107,794.21
4. Step 4: Simplify right side
   1,978,976.54x = 3,025,506,044,899.40
5. Step 5: Solve for x
   x = 3,025,506,044,899.40/1,978,976.54
6. Step 6: Final answer
   x = 1,528,823.60