Finding the Fourth Proportional to 1,185,554.43, 1,778,410.83 and 416,959.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,554.43 : 1,778,410.83 = 416,959.91 : x
2. Step 2: Convert to fraction form
   1,185,554.43/1,778,410.83 = 416,959.91/x
3. Step 3: Cross multiply
   1,185,554.43x = 1,778,410.83 × 416,959.91
4. Step 4: Simplify right side
   1,185,554.43x = 741,526,023,023.45
5. Step 5: Solve for x
   x = 741,526,023,023.45/1,185,554.43
6. Step 6: Final answer
   x = 625,467.72