Finding the Fourth Proportional to 1,112,670.63, 1,669,039.92 and 383,185.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112,670.63 : 1,669,039.92 = 383,185.98 : x
2. Step 2: Convert to fraction form
   1,112,670.63/1,669,039.92 = 383,185.98/x
3. Step 3: Cross multiply
   1,112,670.63x = 1,669,039.92 × 383,185.98
4. Step 4: Simplify right side
   1,112,670.63x = 639,552,697,404.32
5. Step 5: Solve for x
   x = 639,552,697,404.32/1,112,670.63
6. Step 6: Final answer
   x = 574,790.67