Finding the Fourth Proportional to 1,815.08, 2,505.56 and 1,373.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815.08 : 2,505.56 = 1,373.12 : x
2. Step 2: Convert to fraction form
   1,815.08/2,505.56 = 1,373.12/x
3. Step 3: Cross multiply
   1,815.08x = 2,505.56 × 1,373.12
4. Step 4: Simplify right side
   1,815.08x = 3,440,434.55
5. Step 5: Solve for x
   x = 3,440,434.55/1,815.08
6. Step 6: Final answer
   x = 1,895.47