Finding the Fourth Proportional to 1,314,145.82, 1,971,412.83 and 415,383.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,314,145.82 : 1,971,412.83 = 415,383.59 : x
2. Step 2: Convert to fraction form
   1,314,145.82/1,971,412.83 = 415,383.59/x
3. Step 3: Cross multiply
   1,314,145.82x = 1,971,412.83 × 415,383.59
4. Step 4: Simplify right side
   1,314,145.82x = 818,892,543,625.99
5. Step 5: Solve for x
   x = 818,892,543,625.99/1,314,145.82
6. Step 6: Final answer
   x = 623,136.74