Finding the Fourth Proportional to 2,118,470.25, 2,923,427.31 and 1,200,783.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,470.25 : 2,923,427.31 = 1,200,783.86 : x
2. Step 2: Convert to fraction form
   2,118,470.25/2,923,427.31 = 1,200,783.86/x
3. Step 3: Cross multiply
   2,118,470.25x = 2,923,427.31 × 1,200,783.86
4. Step 4: Simplify right side
   2,118,470.25x = 3,510,404,315,114.08
5. Step 5: Solve for x
   x = 3,510,404,315,114.08/2,118,470.25
6. Step 6: Final answer
   x = 1,657,046.78