Finding the Fourth Proportional to 2,030.60, 3,043.50 and 918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.60 : 3,043.50 = 918.72 : x
2. Step 2: Convert to fraction form
   2,030.60/3,043.50 = 918.72/x
3. Step 3: Cross multiply
   2,030.60x = 3,043.50 × 918.72
4. Step 4: Simplify right side
   2,030.60x = 2,796,124.32
5. Step 5: Solve for x
   x = 2,796,124.32/2,030.60
6. Step 6: Final answer
   x = 1,377.00