Finding the Fourth Proportional to 1,367.78, 1,887.48 and 746.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.78 : 1,887.48 = 746.78 : x
2. Step 2: Convert to fraction form
   1,367.78/1,887.48 = 746.78/x
3. Step 3: Cross multiply
   1,367.78x = 1,887.48 × 746.78
4. Step 4: Simplify right side
   1,367.78x = 1,409,532.31
5. Step 5: Solve for x
   x = 1,409,532.31/1,367.78
6. Step 6: Final answer
   x = 1,030.53