Finding the Fourth Proportional to 1,100.52, 1,518.90 and 838.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.52 : 1,518.90 = 838.04 : x
2. Step 2: Convert to fraction form
   1,100.52/1,518.90 = 838.04/x
3. Step 3: Cross multiply
   1,100.52x = 1,518.90 × 838.04
4. Step 4: Simplify right side
   1,100.52x = 1,272,898.96
5. Step 5: Solve for x
   x = 1,272,898.96/1,100.52
6. Step 6: Final answer
   x = 1,156.63