Finding the Fourth Proportional to 1,185,680.82, 1,636,240.52 and 641,814.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,680.82 : 1,636,240.52 = 641,814.94 : x
2. Step 2: Convert to fraction form
   1,185,680.82/1,636,240.52 = 641,814.94/x
3. Step 3: Cross multiply
   1,185,680.82x = 1,636,240.52 × 641,814.94
4. Step 4: Simplify right side
   1,185,680.82x = 1,050,163,611,169.37
5. Step 5: Solve for x
   x = 1,050,163,611,169.37/1,185,680.82
6. Step 6: Final answer
   x = 885,705.15