Finding the Fourth Proportional to 1,433,394.42, 1,978,084.58 and 788,814.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,394.42 : 1,978,084.58 = 788,814.62 : x
2. Step 2: Convert to fraction form
   1,433,394.42/1,978,084.58 = 788,814.62/x
3. Step 3: Cross multiply
   1,433,394.42x = 1,978,084.58 × 788,814.62
4. Step 4: Simplify right side
   1,433,394.42x = 1,560,342,036,300.56
5. Step 5: Solve for x
   x = 1,560,342,036,300.56/1,433,394.42
6. Step 6: Final answer
   x = 1,088,564.33