Finding the Fourth Proportional to 2,116,347.21, 2,920,058.83 and 1,245,219.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,347.21 : 2,920,058.83 = 1,245,219.93 : x
2. Step 2: Convert to fraction form
   2,116,347.21/2,920,058.83 = 1,245,219.93/x
3. Step 3: Cross multiply
   2,116,347.21x = 2,920,058.83 × 1,245,219.93
4. Step 4: Simplify right side
   2,116,347.21x = 3,636,115,448,775.43
5. Step 5: Solve for x
   x = 3,636,115,448,775.43/2,116,347.21
6. Step 6: Final answer
   x = 1,718,109.12