Finding the Fourth Proportional to 1,066,461.72, 1,471,734.72 and 636,779.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066,461.72 : 1,471,734.72 = 636,779.40 : x
2. Step 2: Convert to fraction form
   1,066,461.72/1,471,734.72 = 636,779.40/x
3. Step 3: Cross multiply
   1,066,461.72x = 1,471,734.72 × 636,779.40
4. Step 4: Simplify right side
   1,066,461.72x = 937,170,351,960.77
5. Step 5: Solve for x
   x = 937,170,351,960.77/1,066,461.72
6. Step 6: Final answer
   x = 878,766.05