Finding the Fourth Proportional to 1,369.47, 1,889.86 and 748.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.47 : 1,889.86 = 748.47 : x
2. Step 2: Convert to fraction form
   1,369.47/1,889.86 = 748.47/x
3. Step 3: Cross multiply
   1,369.47x = 1,889.86 × 748.47
4. Step 4: Simplify right side
   1,369.47x = 1,414,503.51
5. Step 5: Solve for x
   x = 1,414,503.51/1,369.47
6. Step 6: Final answer
   x = 1,032.88