Finding the Fourth Proportional to 1,185,875.51, 1,636,496.82 and 641,997.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,875.51 : 1,636,496.82 = 641,997.35 : x
2. Step 2: Convert to fraction form
   1,185,875.51/1,636,496.82 = 641,997.35/x
3. Step 3: Cross multiply
   1,185,875.51x = 1,636,496.82 × 641,997.35
4. Step 4: Simplify right side
   1,185,875.51x = 1,050,626,621,723.43
5. Step 5: Solve for x
   x = 1,050,626,621,723.43/1,185,875.51
6. Step 6: Final answer
   x = 885,950.18