Finding the Fourth Proportional to 1,906,329.72, 2,630,077.34 and 1,218,404.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,906,329.72 : 2,630,077.34 = 1,218,404.25 : x
2. Step 2: Convert to fraction form
   1,906,329.72/2,630,077.34 = 1,218,404.25/x
3. Step 3: Cross multiply
   1,906,329.72x = 2,630,077.34 × 1,218,404.25
4. Step 4: Simplify right side
   1,906,329.72x = 3,204,497,402,792.67
5. Step 5: Solve for x
   x = 3,204,497,402,792.67/1,906,329.72
6. Step 6: Final answer
   x = 1,680,977.52