Finding the Fourth Proportional to 1,842.43, 2,761.55 and 917.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842.43 : 2,761.55 = 917.05 : x
2. Step 2: Convert to fraction form
   1,842.43/2,761.55 = 917.05/x
3. Step 3: Cross multiply
   1,842.43x = 2,761.55 × 917.05
4. Step 4: Simplify right side
   1,842.43x = 2,532,461.03
5. Step 5: Solve for x
   x = 2,532,461.03/1,842.43
6. Step 6: Final answer
   x = 1,374.53