Finding the Fourth Proportional to 716,250.93, 988,406.88 and 406,210.42

Step by Step Solution

1. Step 1: Write the proportion equation
   716,250.93 : 988,406.88 = 406,210.42 : x
2. Step 2: Convert to fraction form
   716,250.93/988,406.88 = 406,210.42/x
3. Step 3: Cross multiply
   716,250.93x = 988,406.88 × 406,210.42
4. Step 4: Simplify right side
   716,250.93x = 401,501,173,855.69
5. Step 5: Solve for x
   x = 401,501,173,855.69/716,250.93
6. Step 6: Final answer
   x = 560,559.38