Finding the Fourth Proportional to 2,636.74, 3,955.86 and 787.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.74 : 3,955.86 = 787.93 : x
2. Step 2: Convert to fraction form
   2,636.74/3,955.86 = 787.93/x
3. Step 3: Cross multiply
   2,636.74x = 3,955.86 × 787.93
4. Step 4: Simplify right side
   2,636.74x = 3,116,940.77
5. Step 5: Solve for x
   x = 3,116,940.77/2,636.74
6. Step 6: Final answer
   x = 1,182.12