Finding the Fourth Proportional to 1,131,661.56, 1,696,437.72 and 776,842.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131,661.56 : 1,696,437.72 = 776,842.68 : x
2. Step 2: Convert to fraction form
   1,131,661.56/1,696,437.72 = 776,842.68/x
3. Step 3: Cross multiply
   1,131,661.56x = 1,696,437.72 × 776,842.68
4. Step 4: Simplify right side
   1,131,661.56x = 1,317,865,224,857.89
5. Step 5: Solve for x
   x = 1,317,865,224,857.89/1,131,661.56
6. Step 6: Final answer
   x = 1,164,540.06