Finding the Fourth Proportional to 1,376.48, 1,899.52 and 786.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.48 : 1,899.52 = 786.92 : x
2. Step 2: Convert to fraction form
   1,376.48/1,899.52 = 786.92/x
3. Step 3: Cross multiply
   1,376.48x = 1,899.52 × 786.92
4. Step 4: Simplify right side
   1,376.48x = 1,494,770.28
5. Step 5: Solve for x
   x = 1,494,770.28/1,376.48
6. Step 6: Final answer
   x = 1,085.94