Finding the Fourth Proportional to 1,931.54, 2,665.50 and 1,047.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.54 : 2,665.50 = 1,047.34 : x
2. Step 2: Convert to fraction form
   1,931.54/2,665.50 = 1,047.34/x
3. Step 3: Cross multiply
   1,931.54x = 2,665.50 × 1,047.34
4. Step 4: Simplify right side
   1,931.54x = 2,791,684.77
5. Step 5: Solve for x
   x = 2,791,684.77/1,931.54
6. Step 6: Final answer
   x = 1,445.32