Finding the Fourth Proportional to 1,941.60, 2,907.77 and 1,118.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.60 : 2,907.77 = 1,118.15 : x
2. Step 2: Convert to fraction form
   1,941.60/2,907.77 = 1,118.15/x
3. Step 3: Cross multiply
   1,941.60x = 2,907.77 × 1,118.15
4. Step 4: Simplify right side
   1,941.60x = 3,251,302.90
5. Step 5: Solve for x
   x = 3,251,302.90/1,941.60
6. Step 6: Final answer
   x = 1,674.55