Finding the Fourth Proportional to 2,187,111.63, 3,280,686.93 and 670,801.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187,111.63 : 3,280,686.93 = 670,801.64 : x
2. Step 2: Convert to fraction form
   2,187,111.63/3,280,686.93 = 670,801.64/x
3. Step 3: Cross multiply
   2,187,111.63x = 3,280,686.93 × 670,801.64
4. Step 4: Simplify right side
   2,187,111.63x = 2,200,690,181,172.28
5. Step 5: Solve for x
   x = 2,200,690,181,172.28/2,187,111.63
6. Step 6: Final answer
   x = 1,006,208.44