Finding the Fourth Proportional to 1,917.34, 2,644.61 and 1,853.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.34 : 2,644.61 = 1,853.06 : x
2. Step 2: Convert to fraction form
   1,917.34/2,644.61 = 1,853.06/x
3. Step 3: Cross multiply
   1,917.34x = 2,644.61 × 1,853.06
4. Step 4: Simplify right side
   1,917.34x = 4,900,598.52
5. Step 5: Solve for x
   x = 4,900,598.52/1,917.34
6. Step 6: Final answer
   x = 2,555.94