Finding the Fourth Proportional to 1,635.59, 2,447.32 and 977.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.59 : 2,447.32 = 977.83 : x
2. Step 2: Convert to fraction form
   1,635.59/2,447.32 = 977.83/x
3. Step 3: Cross multiply
   1,635.59x = 2,447.32 × 977.83
4. Step 4: Simplify right side
   1,635.59x = 2,393,061.08
5. Step 5: Solve for x
   x = 2,393,061.08/1,635.59
6. Step 6: Final answer
   x = 1,463.12