Finding the Fourth Proportional to 1,501.93, 2,072.67 and 838.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.93 : 2,072.67 = 838.81 : x
2. Step 2: Convert to fraction form
   1,501.93/2,072.67 = 838.81/x
3. Step 3: Cross multiply
   1,501.93x = 2,072.67 × 838.81
4. Step 4: Simplify right side
   1,501.93x = 1,738,573.73
5. Step 5: Solve for x
   x = 1,738,573.73/1,501.93
6. Step 6: Final answer
   x = 1,157.56