Finding the Fourth Proportional to 1,095.38, 1,643.39 and 1,030.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.38 : 1,643.39 = 1,030.10 : x
2. Step 2: Convert to fraction form
   1,095.38/1,643.39 = 1,030.10/x
3. Step 3: Cross multiply
   1,095.38x = 1,643.39 × 1,030.10
4. Step 4: Simplify right side
   1,095.38x = 1,692,850.89
5. Step 5: Solve for x
   x = 1,692,850.89/1,095.38
6. Step 6: Final answer
   x = 1,545.45