Finding the Fourth Proportional to 1,397.34, 2,095.74 and 747.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397.34 : 2,095.74 = 747.72 : x
2. Step 2: Convert to fraction form
   1,397.34/2,095.74 = 747.72/x
3. Step 3: Cross multiply
   1,397.34x = 2,095.74 × 747.72
4. Step 4: Simplify right side
   1,397.34x = 1,567,026.71
5. Step 5: Solve for x
   x = 1,567,026.71/1,397.34
6. Step 6: Final answer
   x = 1,121.44