Finding the Fourth Proportional to 1,387.00, 1,914.06 and 757.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387.00 : 1,914.06 = 757.54 : x
2. Step 2: Convert to fraction form
   1,387.00/1,914.06 = 757.54/x
3. Step 3: Cross multiply
   1,387.00x = 1,914.06 × 757.54
4. Step 4: Simplify right side
   1,387.00x = 1,449,967.44
5. Step 5: Solve for x
   x = 1,449,967.44/1,387.00
6. Step 6: Final answer
   x = 1,045.40