Finding the Fourth Proportional to 1,499,128.56, 2,068,848.60 and 854,644.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,128.56 : 2,068,848.60 = 854,644.08 : x
2. Step 2: Convert to fraction form
   1,499,128.56/2,068,848.60 = 854,644.08/x
3. Step 3: Cross multiply
   1,499,128.56x = 2,068,848.60 × 854,644.08
4. Step 4: Simplify right side
   1,499,128.56x = 1,768,129,208,406.29
5. Step 5: Solve for x
   x = 1,768,129,208,406.29/1,499,128.56
6. Step 6: Final answer
   x = 1,179,438.01