Finding the Fourth Proportional to 1,132,816.74, 1,698,978.60 and 374,479.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132,816.74 : 1,698,978.60 = 374,479.05 : x
2. Step 2: Convert to fraction form
   1,132,816.74/1,698,978.60 = 374,479.05/x
3. Step 3: Cross multiply
   1,132,816.74x = 1,698,978.60 × 374,479.05
4. Step 4: Simplify right side
   1,132,816.74x = 636,231,892,098.33
5. Step 5: Solve for x
   x = 636,231,892,098.33/1,132,816.74
6. Step 6: Final answer
   x = 561,637.09