Finding the Fourth Proportional to 1,408.02, 1,942.50 and 876.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.02 : 1,942.50 = 876.54 : x
2. Step 2: Convert to fraction form
   1,408.02/1,942.50 = 876.54/x
3. Step 3: Cross multiply
   1,408.02x = 1,942.50 × 876.54
4. Step 4: Simplify right side
   1,408.02x = 1,702,678.95
5. Step 5: Solve for x
   x = 1,702,678.95/1,408.02
6. Step 6: Final answer
   x = 1,209.27