Finding the Fourth Proportional to 1,376.03, 1,898.46 and 786.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.03 : 1,898.46 = 786.15 : x
2. Step 2: Convert to fraction form
   1,376.03/1,898.46 = 786.15/x
3. Step 3: Cross multiply
   1,376.03x = 1,898.46 × 786.15
4. Step 4: Simplify right side
   1,376.03x = 1,492,460.91
5. Step 5: Solve for x
   x = 1,492,460.91/1,376.03
6. Step 6: Final answer
   x = 1,084.62