Finding the Fourth Proportional to 3,118,395.50, 4,303,385.82 and 1,687,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118,395.50 : 4,303,385.82 = 1,687,611.50 : x
2. Step 2: Convert to fraction form
   3,118,395.50/4,303,385.82 = 1,687,611.50/x
3. Step 3: Cross multiply
   3,118,395.50x = 4,303,385.82 × 1,687,611.50
4. Step 4: Simplify right side
   3,118,395.50x = 7,262,443,398,768.93
5. Step 5: Solve for x
   x = 7,262,443,398,768.93/3,118,395.50
6. Step 6: Final answer
   x = 2,328,903.89