Finding the Fourth Proportional to 1,393.75, 2,089.69 and 734.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.75 : 2,089.69 = 734.93 : x
2. Step 2: Convert to fraction form
   1,393.75/2,089.69 = 734.93/x
3. Step 3: Cross multiply
   1,393.75x = 2,089.69 × 734.93
4. Step 4: Simplify right side
   1,393.75x = 1,535,770.30
5. Step 5: Solve for x
   x = 1,535,770.30/1,393.75
6. Step 6: Final answer
   x = 1,101.90