Finding the Fourth Proportional to 1,185,327.05, 1,777,995.18 and 286,767.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,327.05 : 1,777,995.18 = 286,767.34 : x
2. Step 2: Convert to fraction form
   1,185,327.05/1,777,995.18 = 286,767.34/x
3. Step 3: Cross multiply
   1,185,327.05x = 1,777,995.18 × 286,767.34
4. Step 4: Simplify right side
   1,185,327.05x = 509,870,943,856.43
5. Step 5: Solve for x
   x = 509,870,943,856.43/1,185,327.05
6. Step 6: Final answer
   x = 430,152.12