Finding the Fourth Proportional to 1,395.69, 1,925.74 and 836.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.69 : 1,925.74 = 836.08 : x
2. Step 2: Convert to fraction form
   1,395.69/1,925.74 = 836.08/x
3. Step 3: Cross multiply
   1,395.69x = 1,925.74 × 836.08
4. Step 4: Simplify right side
   1,395.69x = 1,610,068.93
5. Step 5: Solve for x
   x = 1,610,068.93/1,395.69
6. Step 6: Final answer
   x = 1,153.60