Finding the Fourth Proportional to 692,460.50, 1,038,689.77 and 384,907.98

Step by Step Solution

1. Step 1: Write the proportion equation
   692,460.50 : 1,038,689.77 = 384,907.98 : x
2. Step 2: Convert to fraction form
   692,460.50/1,038,689.77 = 384,907.98/x
3. Step 3: Cross multiply
   692,460.50x = 1,038,689.77 × 384,907.98
4. Step 4: Simplify right side
   692,460.50x = 399,799,984,150.18
5. Step 5: Solve for x
   x = 399,799,984,150.18/692,460.50
6. Step 6: Final answer
   x = 577,361.43