Finding the Fourth Proportional to 1,618.83, 2,234.30 and 1,030.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.83 : 2,234.30 = 1,030.05 : x
2. Step 2: Convert to fraction form
   1,618.83/2,234.30 = 1,030.05/x
3. Step 3: Cross multiply
   1,618.83x = 2,234.30 × 1,030.05
4. Step 4: Simplify right side
   1,618.83x = 2,301,435.56
5. Step 5: Solve for x
   x = 2,301,435.56/1,618.83
6. Step 6: Final answer
   x = 1,421.67