Finding the Fourth Proportional to 1,501.47, 2,072.02 and 838.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.47 : 2,072.02 = 838.48 : x
2. Step 2: Convert to fraction form
   1,501.47/2,072.02 = 838.48/x
3. Step 3: Cross multiply
   1,501.47x = 2,072.02 × 838.48
4. Step 4: Simplify right side
   1,501.47x = 1,737,337.74
5. Step 5: Solve for x
   x = 1,737,337.74/1,501.47
6. Step 6: Final answer
   x = 1,157.09