Finding the Fourth Proportional to 1,186,191.42, 1,636,966.71 and 649,647.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186,191.42 : 1,636,966.71 = 649,647.42 : x
2. Step 2: Convert to fraction form
   1,186,191.42/1,636,966.71 = 649,647.42/x
3. Step 3: Cross multiply
   1,186,191.42x = 1,636,966.71 × 649,647.42
4. Step 4: Simplify right side
   1,186,191.42x = 1,063,451,199,777.39
5. Step 5: Solve for x
   x = 1,063,451,199,777.39/1,186,191.42
6. Step 6: Final answer
   x = 896,525.79