Finding the Fourth Proportional to 1,501.18, 2,071.53 and 838.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.18 : 2,071.53 = 838.02 : x
2. Step 2: Convert to fraction form
   1,501.18/2,071.53 = 838.02/x
3. Step 3: Cross multiply
   1,501.18x = 2,071.53 × 838.02
4. Step 4: Simplify right side
   1,501.18x = 1,735,983.57
5. Step 5: Solve for x
   x = 1,735,983.57/1,501.18
6. Step 6: Final answer
   x = 1,156.41