Finding the Fourth Proportional to 2,390.47, 3,585.54 and 1,003.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.47 : 3,585.54 = 1,003.07 : x
2. Step 2: Convert to fraction form
   2,390.47/3,585.54 = 1,003.07/x
3. Step 3: Cross multiply
   2,390.47x = 3,585.54 × 1,003.07
4. Step 4: Simplify right side
   2,390.47x = 3,596,547.61
5. Step 5: Solve for x
   x = 3,596,547.61/2,390.47
6. Step 6: Final answer
   x = 1,504.54