Finding the Fourth Proportional to 1,397,010.72, 1,928,106.72 and 824,191.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,010.72 : 1,928,106.72 = 824,191.68 : x
2. Step 2: Convert to fraction form
   1,397,010.72/1,928,106.72 = 824,191.68/x
3. Step 3: Cross multiply
   1,397,010.72x = 1,928,106.72 × 824,191.68
4. Step 4: Simplify right side
   1,397,010.72x = 1,589,129,516,776.09
5. Step 5: Solve for x
   x = 1,589,129,516,776.09/1,397,010.72
6. Step 6: Final answer
   x = 1,137,521.35