Finding the Fourth Proportional to 1,319,466.27, 1,820,855.83 and 715,841.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,319,466.27 : 1,820,855.83 = 715,841.31 : x
2. Step 2: Convert to fraction form
   1,319,466.27/1,820,855.83 = 715,841.31/x
3. Step 3: Cross multiply
   1,319,466.27x = 1,820,855.83 × 715,841.31
4. Step 4: Simplify right side
   1,319,466.27x = 1,303,443,822,668.34
5. Step 5: Solve for x
   x = 1,303,443,822,668.34/1,319,466.27
6. Step 6: Final answer
   x = 987,856.87