Finding the Fourth Proportional to 1,416.52, 1,954.80 and 787.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,416.52 : 1,954.80 = 787.06 : x
2. Step 2: Convert to fraction form
   1,416.52/1,954.80 = 787.06/x
3. Step 3: Cross multiply
   1,416.52x = 1,954.80 × 787.06
4. Step 4: Simplify right side
   1,416.52x = 1,538,544.89
5. Step 5: Solve for x
   x = 1,538,544.89/1,416.52
6. Step 6: Final answer
   x = 1,086.14