Finding the Fourth Proportional to 2,906,488.32, 4,360,469.76 and 911,961.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906,488.32 : 4,360,469.76 = 911,961.60 : x
2. Step 2: Convert to fraction form
   2,906,488.32/4,360,469.76 = 911,961.60/x
3. Step 3: Cross multiply
   2,906,488.32x = 4,360,469.76 × 911,961.60
4. Step 4: Simplify right side
   2,906,488.32x = 3,976,580,979,081.22
5. Step 5: Solve for x
   x = 3,976,580,979,081.22/2,906,488.32
6. Step 6: Final answer
   x = 1,368,173.73