Finding the Fourth Proportional to 1,070.43, 1,597.35 and 947.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070.43 : 1,597.35 = 947.42 : x
2. Step 2: Convert to fraction form
   1,070.43/1,597.35 = 947.42/x
3. Step 3: Cross multiply
   1,070.43x = 1,597.35 × 947.42
4. Step 4: Simplify right side
   1,070.43x = 1,513,353.35
5. Step 5: Solve for x
   x = 1,513,353.35/1,070.43
6. Step 6: Final answer
   x = 1,413.78