Finding the Fourth Proportional to 1,904.72, 2,858.04 and 751.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,904.72 : 2,858.04 = 751.28 : x
2. Step 2: Convert to fraction form
   1,904.72/2,858.04 = 751.28/x
3. Step 3: Cross multiply
   1,904.72x = 2,858.04 × 751.28
4. Step 4: Simplify right side
   1,904.72x = 2,147,188.29
5. Step 5: Solve for x
   x = 2,147,188.29/1,904.72
6. Step 6: Final answer
   x = 1,127.30