Finding the Fourth Proportional to 1,507.47, 2,081.48 and 1,214.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.47 : 2,081.48 = 1,214.12 : x
2. Step 2: Convert to fraction form
   1,507.47/2,081.48 = 1,214.12/x
3. Step 3: Cross multiply
   1,507.47x = 2,081.48 × 1,214.12
4. Step 4: Simplify right side
   1,507.47x = 2,527,150.02
5. Step 5: Solve for x
   x = 2,527,150.02/1,507.47
6. Step 6: Final answer
   x = 1,676.42