Finding the Fourth Proportional to 1,196,381.72, 1,651,262.28 and 687,364.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196,381.72 : 1,651,262.28 = 687,364.76 : x
2. Step 2: Convert to fraction form
   1,196,381.72/1,651,262.28 = 687,364.76/x
3. Step 3: Cross multiply
   1,196,381.72x = 1,651,262.28 × 687,364.76
4. Step 4: Simplify right side
   1,196,381.72x = 1,135,019,500,789.25
5. Step 5: Solve for x
   x = 1,135,019,500,789.25/1,196,381.72
6. Step 6: Final answer
   x = 948,710.17