Finding the Fourth Proportional to 1,931.37, 2,665.29 and 1,047.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.37 : 2,665.29 = 1,047.18 : x
2. Step 2: Convert to fraction form
   1,931.37/2,665.29 = 1,047.18/x
3. Step 3: Cross multiply
   1,931.37x = 2,665.29 × 1,047.18
4. Step 4: Simplify right side
   1,931.37x = 2,791,038.38
5. Step 5: Solve for x
   x = 2,791,038.38/1,931.37
6. Step 6: Final answer
   x = 1,445.11