Finding the Fourth Proportional to 2,826.59, 4,238.52 and 977.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,826.59 : 4,238.52 = 977.06 : x
2. Step 2: Convert to fraction form
   2,826.59/4,238.52 = 977.06/x
3. Step 3: Cross multiply
   2,826.59x = 4,238.52 × 977.06
4. Step 4: Simplify right side
   2,826.59x = 4,141,298.95
5. Step 5: Solve for x
   x = 4,141,298.95/2,826.59
6. Step 6: Final answer
   x = 1,465.12