Finding the Fourth Proportional to 1,376.89, 1,900.12 and 747.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.89 : 1,900.12 = 747.42 : x
2. Step 2: Convert to fraction form
   1,376.89/1,900.12 = 747.42/x
3. Step 3: Cross multiply
   1,376.89x = 1,900.12 × 747.42
4. Step 4: Simplify right side
   1,376.89x = 1,420,187.69
5. Step 5: Solve for x
   x = 1,420,187.69/1,376.89
6. Step 6: Final answer
   x = 1,031.45