Finding the Fourth Proportional to 1,296,483.83, 1,789,176.32 and 715,705.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,296,483.83 : 1,789,176.32 = 715,705.58 : x
2. Step 2: Convert to fraction form
   1,296,483.83/1,789,176.32 = 715,705.58/x
3. Step 3: Cross multiply
   1,296,483.83x = 1,789,176.32 × 715,705.58
4. Step 4: Simplify right side
   1,296,483.83x = 1,280,523,463,303.46
5. Step 5: Solve for x
   x = 1,280,523,463,303.46/1,296,483.83
6. Step 6: Final answer
   x = 987,689.50