Finding the Fourth Proportional to 2,102.19, 2,900.95 and 1,158.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.19 : 2,900.95 = 1,158.00 : x
2. Step 2: Convert to fraction form
   2,102.19/2,900.95 = 1,158.00/x
3. Step 3: Cross multiply
   2,102.19x = 2,900.95 × 1,158.00
4. Step 4: Simplify right side
   2,102.19x = 3,359,279.81
5. Step 5: Solve for x
   x = 3,359,279.81/2,102.19
6. Step 6: Final answer
   x = 1,597.99