Finding the Fourth Proportional to 1,191,395.99, 1,788,493.67 and 743,148.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,395.99 : 1,788,493.67 = 743,148.47 : x
2. Step 2: Convert to fraction form
   1,191,395.99/1,788,493.67 = 743,148.47/x
3. Step 3: Cross multiply
   1,191,395.99x = 1,788,493.67 × 743,148.47
4. Step 4: Simplify right side
   1,191,395.99x = 1,329,116,338,007.48
5. Step 5: Solve for x
   x = 1,329,116,338,007.48/1,191,395.99
6. Step 6: Final answer
   x = 1,115,595.78