Finding the Fourth Proportional to 1,007,222.58, 1,389,925.17 and 554,484.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,222.58 : 1,389,925.17 = 554,484.42 : x
2. Step 2: Convert to fraction form
   1,007,222.58/1,389,925.17 = 554,484.42/x
3. Step 3: Cross multiply
   1,007,222.58x = 1,389,925.17 × 554,484.42
4. Step 4: Simplify right side
   1,007,222.58x = 770,691,851,730.85
5. Step 5: Solve for x
   x = 770,691,851,730.85/1,007,222.58
6. Step 6: Final answer
   x = 765,165.38