Finding the Fourth Proportional to 1,501.34, 2,071.95 and 838.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.34 : 2,071.95 = 838.28 : x
2. Step 2: Convert to fraction form
   1,501.34/2,071.95 = 838.28/x
3. Step 3: Cross multiply
   1,501.34x = 2,071.95 × 838.28
4. Step 4: Simplify right side
   1,501.34x = 1,736,876.28
5. Step 5: Solve for x
   x = 1,736,876.28/1,501.34
6. Step 6: Final answer
   x = 1,156.89