Finding the Fourth Proportional to 1,408.08, 1,943.08 and 787.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.08 : 1,943.08 = 787.12 : x
2. Step 2: Convert to fraction form
   1,408.08/1,943.08 = 787.12/x
3. Step 3: Cross multiply
   1,408.08x = 1,943.08 × 787.12
4. Step 4: Simplify right side
   1,408.08x = 1,529,437.13
5. Step 5: Solve for x
   x = 1,529,437.13/1,408.08
6. Step 6: Final answer
   x = 1,086.19