Finding the Fourth Proportional to 1,870,311.99, 2,580,978.77 and 1,054,508.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,311.99 : 2,580,978.77 = 1,054,508.45 : x
2. Step 2: Convert to fraction form
   1,870,311.99/2,580,978.77 = 1,054,508.45/x
3. Step 3: Cross multiply
   1,870,311.99x = 2,580,978.77 × 1,054,508.45
4. Step 4: Simplify right side
   1,870,311.99x = 2,721,663,922,235.61
5. Step 5: Solve for x
   x = 2,721,663,922,235.61/1,870,311.99
6. Step 6: Final answer
   x = 1,455,192.47