Finding the Fourth Proportional to 1,502.42, 2,072.86 and 1,004.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.42 : 2,072.86 = 1,004.87 : x
2. Step 2: Convert to fraction form
   1,502.42/2,072.86 = 1,004.87/x
3. Step 3: Cross multiply
   1,502.42x = 2,072.86 × 1,004.87
4. Step 4: Simplify right side
   1,502.42x = 2,082,957.50
5. Step 5: Solve for x
   x = 2,082,957.50/1,502.42
6. Step 6: Final answer
   x = 1,386.41