Finding the Fourth Proportional to 1,118,685.12, 1,676,525.91 and 612,482.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,685.12 : 1,676,525.91 = 612,482.10 : x
2. Step 2: Convert to fraction form
   1,118,685.12/1,676,525.91 = 612,482.10/x
3. Step 3: Cross multiply
   1,118,685.12x = 1,676,525.91 × 612,482.10
4. Step 4: Simplify right side
   1,118,685.12x = 1,026,842,110,061.21
5. Step 5: Solve for x
   x = 1,026,842,110,061.21/1,118,685.12
6. Step 6: Final answer
   x = 917,900.93