Finding the Fourth Proportional to 1,395.47, 1,925.67 and 836.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.47 : 1,925.67 = 836.25 : x
2. Step 2: Convert to fraction form
   1,395.47/1,925.67 = 836.25/x
3. Step 3: Cross multiply
   1,395.47x = 1,925.67 × 836.25
4. Step 4: Simplify right side
   1,395.47x = 1,610,337.45
5. Step 5: Solve for x
   x = 1,610,337.45/1,395.47
6. Step 6: Final answer
   x = 1,153.98