Finding the Fourth Proportional to 1,591.72, 2,377.88 and 1,267.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.72 : 2,377.88 = 1,267.48 : x
2. Step 2: Convert to fraction form
   1,591.72/2,377.88 = 1,267.48/x
3. Step 3: Cross multiply
   1,591.72x = 2,377.88 × 1,267.48
4. Step 4: Simplify right side
   1,591.72x = 3,013,915.34
5. Step 5: Solve for x
   x = 3,013,915.34/1,591.72
6. Step 6: Final answer
   x = 1,893.50