Finding the Fourth Proportional to 1,618.03, 2,426.37 and 522.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.03 : 2,426.37 = 522.10 : x
2. Step 2: Convert to fraction form
   1,618.03/2,426.37 = 522.10/x
3. Step 3: Cross multiply
   1,618.03x = 2,426.37 × 522.10
4. Step 4: Simplify right side
   1,618.03x = 1,266,807.78
5. Step 5: Solve for x
   x = 1,266,807.78/1,618.03
6. Step 6: Final answer
   x = 782.93