Finding the Fourth Proportional to 1,395.63, 1,925.98 and 798.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.63 : 1,925.98 = 798.05 : x
2. Step 2: Convert to fraction form
   1,395.63/1,925.98 = 798.05/x
3. Step 3: Cross multiply
   1,395.63x = 1,925.98 × 798.05
4. Step 4: Simplify right side
   1,395.63x = 1,537,031.16
5. Step 5: Solve for x
   x = 1,537,031.16/1,395.63
6. Step 6: Final answer
   x = 1,101.32