Finding the Fourth Proportional to 1,376,886.06, 2,064,840.38 and 403,978.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376,886.06 : 2,064,840.38 = 403,978.82 : x
2. Step 2: Convert to fraction form
   1,376,886.06/2,064,840.38 = 403,978.82/x
3. Step 3: Cross multiply
   1,376,886.06x = 2,064,840.38 × 403,978.82
4. Step 4: Simplify right side
   1,376,886.06x = 834,151,776,315.17
5. Step 5: Solve for x
   x = 834,151,776,315.17/1,376,886.06
6. Step 6: Final answer
   x = 605,824.84