Finding the Fourth Proportional to 1,073.45, 1,618.23 and 1,002.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073.45 : 1,618.23 = 1,002.98 : x
2. Step 2: Convert to fraction form
   1,073.45/1,618.23 = 1,002.98/x
3. Step 3: Cross multiply
   1,073.45x = 1,618.23 × 1,002.98
4. Step 4: Simplify right side
   1,073.45x = 1,623,054.49
5. Step 5: Solve for x
   x = 1,623,054.49/1,073.45
6. Step 6: Final answer
   x = 1,511.99