Finding the Fourth Proportional to 881,196.53, 1,321,525.67 and 609,389.91

Step by Step Solution

1. Step 1: Write the proportion equation
   881,196.53 : 1,321,525.67 = 609,389.91 : x
2. Step 2: Convert to fraction form
   881,196.53/1,321,525.67 = 609,389.91/x
3. Step 3: Cross multiply
   881,196.53x = 1,321,525.67 × 609,389.91
4. Step 4: Simplify right side
   881,196.53x = 805,324,406,057.04
5. Step 5: Solve for x
   x = 805,324,406,057.04/881,196.53
6. Step 6: Final answer
   x = 913,898.75