Finding the Fourth Proportional to 1,019,340.69, 1,529,015.91 and 309,374.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019,340.69 : 1,529,015.91 = 309,374.88 : x
2. Step 2: Convert to fraction form
   1,019,340.69/1,529,015.91 = 309,374.88/x
3. Step 3: Cross multiply
   1,019,340.69x = 1,529,015.91 × 309,374.88
4. Step 4: Simplify right side
   1,019,340.69x = 473,039,113,674.34
5. Step 5: Solve for x
   x = 473,039,113,674.34/1,019,340.69
6. Step 6: Final answer
   x = 464,063.80