Finding the Fourth Proportional to 1,948,346.15, 2,688,601.86 and 1,077,128.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,948,346.15 : 2,688,601.86 = 1,077,128.69 : x
2. Step 2: Convert to fraction form
   1,948,346.15/2,688,601.86 = 1,077,128.69/x
3. Step 3: Cross multiply
   1,948,346.15x = 2,688,601.86 × 1,077,128.69
4. Step 4: Simplify right side
   1,948,346.15x = 2,895,970,185,950.35
5. Step 5: Solve for x
   x = 2,895,970,185,950.35/1,948,346.15
6. Step 6: Final answer
   x = 1,486,373.56