Finding the Fourth Proportional to 1,309.86, 1,951.74 and 1,297.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309.86 : 1,951.74 = 1,297.35 : x
2. Step 2: Convert to fraction form
   1,309.86/1,951.74 = 1,297.35/x
3. Step 3: Cross multiply
   1,309.86x = 1,951.74 × 1,297.35
4. Step 4: Simplify right side
   1,309.86x = 2,532,089.89
5. Step 5: Solve for x
   x = 2,532,089.89/1,309.86
6. Step 6: Final answer
   x = 1,933.10