Finding the Fourth Proportional to 805,196.53, 1,111,185.03 and 442,635.67

Step by Step Solution

1. Step 1: Write the proportion equation
   805,196.53 : 1,111,185.03 = 442,635.67 : x
2. Step 2: Convert to fraction form
   805,196.53/1,111,185.03 = 442,635.67/x
3. Step 3: Cross multiply
   805,196.53x = 1,111,185.03 × 442,635.67
4. Step 4: Simplify right side
   805,196.53x = 491,850,130,248.02
5. Step 5: Solve for x
   x = 491,850,130,248.02/805,196.53
6. Step 6: Final answer
   x = 610,844.82