Finding the Fourth Proportional to 690,826.82, 1,036,379.92 and 291,468.56

Step by Step Solution

1. Step 1: Write the proportion equation
   690,826.82 : 1,036,379.92 = 291,468.56 : x
2. Step 2: Convert to fraction form
   690,826.82/1,036,379.92 = 291,468.56/x
3. Step 3: Cross multiply
   690,826.82x = 1,036,379.92 × 291,468.56
4. Step 4: Simplify right side
   690,826.82x = 302,072,162,895.32
5. Step 5: Solve for x
   x = 302,072,162,895.32/690,826.82
6. Step 6: Final answer
   x = 437,261.78