Finding the Fourth Proportional to 1,931.42, 2,665.37 and 1,047.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.42 : 2,665.37 = 1,047.23 : x
2. Step 2: Convert to fraction form
   1,931.42/2,665.37 = 1,047.23/x
3. Step 3: Cross multiply
   1,931.42x = 2,665.37 × 1,047.23
4. Step 4: Simplify right side
   1,931.42x = 2,791,236.86
5. Step 5: Solve for x
   x = 2,791,236.86/1,931.42
6. Step 6: Final answer
   x = 1,445.18