Finding the Fourth Proportional to 671,411.58, 1,007,128.03 and 373,783.83

Step by Step Solution

1. Step 1: Write the proportion equation
   671,411.58 : 1,007,128.03 = 373,783.83 : x
2. Step 2: Convert to fraction form
   671,411.58/1,007,128.03 = 373,783.83/x
3. Step 3: Cross multiply
   671,411.58x = 1,007,128.03 × 373,783.83
4. Step 4: Simplify right side
   671,411.58x = 376,448,172,353.76
5. Step 5: Solve for x
   x = 376,448,172,353.76/671,411.58
6. Step 6: Final answer
   x = 560,681.68