Finding the Fourth Proportional to 698,654, 964,142.52 and 380,702

Step by Step Solution

1. Step 1: Write the proportion equation
   698,654 : 964,142.52 = 380,702 : x
2. Step 2: Convert to fraction form
   698,654/964,142.52 = 380,702/x
3. Step 3: Cross multiply
   698,654x = 964,142.52 × 380,702
4. Step 4: Simplify right side
   698,654x = 367,050,985,649.04
5. Step 5: Solve for x
   x = 367,050,985,649.04/698,654
6. Step 6: Final answer
   x = 525,368.76