Finding the Fourth Proportional to 1,300,077.10, 1,949,338.05 and 670,221.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300,077.10 : 1,949,338.05 = 670,221.10 : x
2. Step 2: Convert to fraction form
   1,300,077.10/1,949,338.05 = 670,221.10/x
3. Step 3: Cross multiply
   1,300,077.10x = 1,949,338.05 × 670,221.10
4. Step 4: Simplify right side
   1,300,077.10x = 1,306,487,492,142.86
5. Step 5: Solve for x
   x = 1,306,487,492,142.86/1,300,077.10
6. Step 6: Final answer
   x = 1,004,930.78