Finding the Fourth Proportional to 1,188,826.98, 1,640,735.98 and 665,736.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,826.98 : 1,640,735.98 = 665,736.82 : x
2. Step 2: Convert to fraction form
   1,188,826.98/1,640,735.98 = 665,736.82/x
3. Step 3: Cross multiply
   1,188,826.98x = 1,640,735.98 × 665,736.82
4. Step 4: Simplify right side
   1,188,826.98x = 1,092,298,353,784.78
5. Step 5: Solve for x
   x = 1,092,298,353,784.78/1,188,826.98
6. Step 6: Final answer
   x = 918,803.47