Finding the Fourth Proportional to 992,672, 1,369,888 and 562,814.72

Step by Step Solution

1. Step 1: Write the proportion equation
   992,672 : 1,369,888 = 562,814.72 : x
2. Step 2: Convert to fraction form
   992,672/1,369,888 = 562,814.72/x
3. Step 3: Cross multiply
   992,672x = 1,369,888 × 562,814.72
4. Step 4: Simplify right side
   992,672x = 770,993,131,151.36
5. Step 5: Solve for x
   x = 770,993,131,151.36/992,672
6. Step 6: Final answer
   x = 776,684.68