Finding the Fourth Proportional to 1,188,749.51, 1,640,474.33 and 679,462.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,749.51 : 1,640,474.33 = 679,462.82 : x
2. Step 2: Convert to fraction form
   1,188,749.51/1,640,474.33 = 679,462.82/x
3. Step 3: Cross multiply
   1,188,749.51x = 1,640,474.33 × 679,462.82
4. Step 4: Simplify right side
   1,188,749.51x = 1,114,641,302,799.72
5. Step 5: Solve for x
   x = 1,114,641,302,799.72/1,188,749.51
6. Step 6: Final answer
   x = 937,658.69