Finding the Fourth Proportional to 1,411,498.98, 2,116,058.31 and 612,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411,498.98 : 2,116,058.31 = 612,178.50 : x
2. Step 2: Convert to fraction form
   1,411,498.98/2,116,058.31 = 612,178.50/x
3. Step 3: Cross multiply
   1,411,498.98x = 2,116,058.31 × 612,178.50
4. Step 4: Simplify right side
   1,411,498.98x = 1,295,405,402,128.34
5. Step 5: Solve for x
   x = 1,295,405,402,128.34/1,411,498.98
6. Step 6: Final answer
   x = 917,751.57