Finding the Fourth Proportional to 1,333,012.02, 1,839,554.61 and 721,162.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333,012.02 : 1,839,554.61 = 721,162.80 : x
2. Step 2: Convert to fraction form
   1,333,012.02/1,839,554.61 = 721,162.80/x
3. Step 3: Cross multiply
   1,333,012.02x = 1,839,554.61 × 721,162.80
4. Step 4: Simplify right side
   1,333,012.02x = 1,326,618,353,300.51
5. Step 5: Solve for x
   x = 1,326,618,353,300.51/1,333,012.02
6. Step 6: Final answer
   x = 995,203.59