Finding the Fourth Proportional to 1,651.98, 2,477.01 and 786.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,651.98 : 2,477.01 = 786.30 : x
2. Step 2: Convert to fraction form
   1,651.98/2,477.01 = 786.30/x
3. Step 3: Cross multiply
   1,651.98x = 2,477.01 × 786.30
4. Step 4: Simplify right side
   1,651.98x = 1,947,672.96
5. Step 5: Solve for x
   x = 1,947,672.96/1,651.98
6. Step 6: Final answer
   x = 1,178.99