Finding the Fourth Proportional to 1,364.27, 2,047.21 and 747.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.27 : 2,047.21 = 747.86 : x
2. Step 2: Convert to fraction form
   1,364.27/2,047.21 = 747.86/x
3. Step 3: Cross multiply
   1,364.27x = 2,047.21 × 747.86
4. Step 4: Simplify right side
   1,364.27x = 1,531,026.47
5. Step 5: Solve for x
   x = 1,531,026.47/1,364.27
6. Step 6: Final answer
   x = 1,122.23