Finding the Fourth Proportional to 2,338,406.12, 3,509,498.39 and 991,514.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338,406.12 : 3,509,498.39 = 991,514.50 : x
2. Step 2: Convert to fraction form
   2,338,406.12/3,509,498.39 = 991,514.50/x
3. Step 3: Cross multiply
   2,338,406.12x = 3,509,498.39 × 991,514.50
4. Step 4: Simplify right side
   2,338,406.12x = 3,479,718,527,680.34
5. Step 5: Solve for x
   x = 3,479,718,527,680.34/2,338,406.12
6. Step 6: Final answer
   x = 1,488,072.79