Finding the Fourth Proportional to 1,188,747.51, 1,640,471.57 and 679,460.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,747.51 : 1,640,471.57 = 679,460.82 : x
2. Step 2: Convert to fraction form
   1,188,747.51/1,640,471.57 = 679,460.82/x
3. Step 3: Cross multiply
   1,188,747.51x = 1,640,471.57 × 679,460.82
4. Step 4: Simplify right side
   1,188,747.51x = 1,114,636,158,138.89
5. Step 5: Solve for x
   x = 1,114,636,158,138.89/1,188,747.51
6. Step 6: Final answer
   x = 937,655.94