Finding the Fourth Proportional to 1,538,111.75, 2,307,173.29 and 473,146.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,111.75 : 2,307,173.29 = 473,146.43 : x
2. Step 2: Convert to fraction form
   1,538,111.75/2,307,173.29 = 473,146.43/x
3. Step 3: Cross multiply
   1,538,111.75x = 2,307,173.29 × 473,146.43
4. Step 4: Simplify right side
   1,538,111.75x = 1,091,630,792,836.12
5. Step 5: Solve for x
   x = 1,091,630,792,836.12/1,538,111.75
6. Step 6: Final answer
   x = 709,721.38