Finding the Fourth Proportional to 1,934.63, 2,670.12 and 1,148.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,934.63 : 2,670.12 = 1,148.72 : x
2. Step 2: Convert to fraction form
   1,934.63/2,670.12 = 1,148.72/x
3. Step 3: Cross multiply
   1,934.63x = 2,670.12 × 1,148.72
4. Step 4: Simplify right side
   1,934.63x = 3,067,220.25
5. Step 5: Solve for x
   x = 3,067,220.25/1,934.63
6. Step 6: Final answer
   x = 1,585.43