Finding the Fourth Proportional to 1,433,397.82, 1,978,089.28 and 788,818

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,397.82 : 1,978,089.28 = 788,818 : x
2. Step 2: Convert to fraction form
   1,433,397.82/1,978,089.28 = 788,818/x
3. Step 3: Cross multiply
   1,433,397.82x = 1,978,089.28 × 788,818
4. Step 4: Simplify right side
   1,433,397.82x = 1,560,352,429,671.04
5. Step 5: Solve for x
   x = 1,560,352,429,671.04/1,433,397.82
6. Step 6: Final answer
   x = 1,088,569.00