Finding the Fourth Proportional to 1,915,654.78, 2,643,722.72 and 1,056,213.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915,654.78 : 2,643,722.72 = 1,056,213.73 : x
2. Step 2: Convert to fraction form
   1,915,654.78/2,643,722.72 = 1,056,213.73/x
3. Step 3: Cross multiply
   1,915,654.78x = 2,643,722.72 × 1,056,213.73
4. Step 4: Simplify right side
   1,915,654.78x = 2,792,336,235,176.95
5. Step 5: Solve for x
   x = 2,792,336,235,176.95/1,915,654.78
6. Step 6: Final answer
   x = 1,457,640.63