Finding the Fourth Proportional to 1,091,142.74, 1,635,664.35 and 558,914.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,142.74 : 1,635,664.35 = 558,914.42 : x
2. Step 2: Convert to fraction form
   1,091,142.74/1,635,664.35 = 558,914.42/x
3. Step 3: Cross multiply
   1,091,142.74x = 1,635,664.35 × 558,914.42
4. Step 4: Simplify right side
   1,091,142.74x = 914,196,391,494.93
5. Step 5: Solve for x
   x = 914,196,391,494.93/1,091,142.74
6. Step 6: Final answer
   x = 837,833.91