Finding the Fourth Proportional to 2,012.60, 3,017.82 and 916.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.60 : 3,017.82 = 916.00 : x
2. Step 2: Convert to fraction form
   2,012.60/3,017.82 = 916.00/x
3. Step 3: Cross multiply
   2,012.60x = 3,017.82 × 916.00
4. Step 4: Simplify right side
   2,012.60x = 2,764,319.01
5. Step 5: Solve for x
   x = 2,764,319.01/2,012.60
6. Step 6: Final answer
   x = 1,373.50