Finding the Fourth Proportional to 1,807.52, 2,493.61 and 1,217.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.52 : 2,493.61 = 1,217.03 : x
2. Step 2: Convert to fraction form
   1,807.52/2,493.61 = 1,217.03/x
3. Step 3: Cross multiply
   1,807.52x = 2,493.61 × 1,217.03
4. Step 4: Simplify right side
   1,807.52x = 3,034,782.67
5. Step 5: Solve for x
   x = 3,034,782.67/1,807.52
6. Step 6: Final answer
   x = 1,678.98