Finding the Fourth Proportional to 1,097,300.84, 1,645,609.64 and 387,162.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,300.84 : 1,645,609.64 = 387,162.50 : x
2. Step 2: Convert to fraction form
   1,097,300.84/1,645,609.64 = 387,162.50/x
3. Step 3: Cross multiply
   1,097,300.84x = 1,645,609.64 × 387,162.50
4. Step 4: Simplify right side
   1,097,300.84x = 637,118,332,082.64
5. Step 5: Solve for x
   x = 637,118,332,082.64/1,097,300.84
6. Step 6: Final answer
   x = 580,623.21