Finding the Fourth Proportional to 1,488.27, 2,055.08 and 1,047.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.27 : 2,055.08 = 1,047.15 : x
2. Step 2: Convert to fraction form
   1,488.27/2,055.08 = 1,047.15/x
3. Step 3: Cross multiply
   1,488.27x = 2,055.08 × 1,047.15
4. Step 4: Simplify right side
   1,488.27x = 2,151,971.79
5. Step 5: Solve for x
   x = 2,151,971.79/1,488.27
6. Step 6: Final answer
   x = 1,445.96