Finding the Fourth Proportional to 1,501.52, 2,071.88 and 838.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.52 : 2,071.88 = 838.28 : x
2. Step 2: Convert to fraction form
   1,501.52/2,071.88 = 838.28/x
3. Step 3: Cross multiply
   1,501.52x = 2,071.88 × 838.28
4. Step 4: Simplify right side
   1,501.52x = 1,736,815.57
5. Step 5: Solve for x
   x = 1,736,815.57/1,501.52
6. Step 6: Final answer
   x = 1,156.70