Finding the Fourth Proportional to 1,186,189.30, 1,636,968.72 and 676,939.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186,189.30 : 1,636,968.72 = 676,939.06 : x
2. Step 2: Convert to fraction form
   1,186,189.30/1,636,968.72 = 676,939.06/x
3. Step 3: Cross multiply
   1,186,189.30x = 1,636,968.72 × 676,939.06
4. Step 4: Simplify right side
   1,186,189.30x = 1,108,128,066,566.20
5. Step 5: Solve for x
   x = 1,108,128,066,566.20/1,186,189.30
6. Step 6: Final answer
   x = 934,191.59